A heckler is a person who harasses and tries to disconcert others with questions, challenges, or gibes. Hecklers are often known to shout disparaging comments at a performance or event, or to interrupt set-piece speeches, with the intent of disturbing performers or participants.
The term originates from the textile trade, where to heckle was to tease or comb out flax or hemp fibres. The additional meaning, to interrupt speakers with awkward or embarrassing questions, was added in Scotland, and specifically perhaps in early nineteenth century Dundee, a famously radical town where the hecklers who combed the flax had established a reputation as the most radical and belligerent element in the workforce. In the heckling factory, one heckler would read out the day's news while the others worked, to the accompaniment of interruptions and furious debate.
Heckling was a major part of the vaudeville theater. Sometimes it was incorporated into the play. Milton Berle's weekly TV variety series in the 1960s featured a heckler named Sidney Spritzer (German/Yiddish for "Squirter") played by Borscht Belt comic Irving Benson. In the 1970s and 1980s, The Muppet Show, which was also built around a vaudeville theme, featured two hecklers, Statler & Waldorf (two old men named after famous hotels). Heckles are now particularly likely to be heard at comedy performances, to unsettle or compete with the performer.
Politicians speaking before live audiences have less latitude to deal with hecklers. Legally, such conduct may constitute protected free speech. Strategically, coarse or belittling retorts to hecklers entails personal risk disproportionate to any gain. Some politicians, however, have been known to improvise a relevant and witty response despite these pitfalls. One acknowledged expert at this was Harold Wilson, British Prime Minister in the 1960s:
- Heckler: (interrupting a passage in a Wilson speech about Labour's spending plans) What about Vietnam?
- Wilson: The government has no plans to increase public expenditure in Vietnam.
- Heckler: Rubbish!
- Wilson: I'll come to your special interest in a minute, sir.
In an era when it was common for rotten fruit and vegetables to be thrown at speakers, Australian Prime Minister Ben Chifley once exhorted his audience to lend him their ears, paraphrasing Mark Antony. Immediately, a large cabbage landed on the stage. Chifley replied "I said your ears, Sir, not your head".
In 1992, then-Presidential candidate Bill Clinton was interrupted by Bob Rafsky, a member of the AIDS activism group ACT UP, who accused him of "dying of ambition to be president" during a rally. After becoming visibly agitated, Clinton took the microphone off the stand, pointed to the heckler and directly responded to him by saying, "[...] I have treated you and all of the other people who have interrupted my rallies with a hell of a lot more respect than you treated me. And it's time to start thinking about that!" Clinton was then met with raucous applause.
Audience control 
One modern political approach to discourage heckling is to ensure that major events are given before a "tame" audience of sympathizers, or conducted to allow restrictions on who may remain on the premises (see also, astroturfing). The downside is this may make heckling incidents even more newsworthy. This happened to Tony Blair during a photo op visit to a hospital during the 2001 general election campaign, and again in 2003 during a speech.
In 2004, American Vice President Dick Cheney was interrupted mid-speech by Perry Patterson, a middle-aged mother in a pre-screened rally audience. After various supportive outbursts that were permitted ("Four more years", "Go Bush!"), Patterson uttered "No, no, no, no" and was removed from the speech area and told to leave. She refused, and was arrested for criminal trespass.
Later, in 2005, Cheney received some heckling that was broadcast during his trip to New Orleans, after Hurricane Katrina ravaged the area. The heckling occurred during a press conference in Gulfport, Mississippi, in an area that was cordoned off for public safety reasons, and then further secured for the press conference. Nevertheless, emergency room physician Ben Marble got close enough to the proceedings and could be heard yelling, "Go fuck yourself, Mr. Cheney." Cheney laughed it off and continued speaking. The heckle was a reference to Cheney's use of the phrase the previous year, when during a heated exchange with Senator Patrick Joseph Leahy, Vermont, he said "go fuck yourself" on the floor of the senate.
On 15 October 2005, The Scotsman reported "Iranian ambassador Dr Seyed Mohammed Hossein Adeli... speaking at the annual Campaign for Nuclear Disarmament conference... During his speech to the CND several people were told to leave the room following protests at Iran's human rights record. Several protesters shouted: "Fascists", at the ambassador and the organisers of the conference. Walter Wolfgang, the 82-year-old peace campaigner who was forced out of the Labour Party conference last month, was in the audience."
On Thursday, 20 April 2006, a heckler from the Falun Gong spiritual movement entered the US White House grounds as a reporter and interrupted a formal arrival ceremony for Chinese President Hu Jintao. Moments into Mr Hu's speech at the event, Wang Wenyi, perched on the top tier of the stands reserved for the press, began screaming in English and Chinese: "President Bush stop him. Stop this visit. Stop the killing and torture." President Bush later apologised to his guest.
On 9 September 2009, Representative Joe Wilson (R-SC) shouted "you lie!" at President Barack Obama after President Obama stated that his health care plan would not subsidize coverage for illegal immigrants during a speech he was making to a joint session of Congress. Wilson later apologized for his outburst.
Hecklers can also appear at sporting events, and usually (but not always) direct their taunts at a visiting team. Fans of the Philadelphia Eagles American football team are notorious for heckling; among the most infamous incidents were booing and subsequently throwing snowballs at a performer dressed as Santa Claus in a halftime show in 1968, and cheering at the career-ending injury of visiting team player Michael Irvin in 1999. Often, sports heckling will also involve throwing objects onto the field; this has led most sports stadiums to ban glass containers and bottlecaps. Another famous heckler is Robert Szasz, who regularly attends Tampa Bay Rays baseball games and is known for loudly heckling one opposing player per game or series. Former Yugoslav football star Dejan Savićević is involved in an infamous incident with a heckler in which during an interview, a man on the street is heard shouting off-camera: "You're a piece of shit!" Dejan berated the man, and went on to finish the interview, without missing a beat.
At the NBA Drafts of recent years, many fans have gone with heckling ESPN NBA analyst and host of, Quite Frankly with Stephen A. Smith, Stephen A. Smith. Most notably, The Stephen A. Smith Heckling Society of Gentlemen heckles him with a sock puppet dubbed as Stephen A. himself.
Tennis fans are also fairly noted for heckling. Some may call out during a service point to distract either player. Another common heckle from tennis fans is cheering after a service fault, which is considered to be rude and unsporting.
In 2009, then Toronto Blue Jays outfielder Alex Ríos was a victim of a heckling incident outside after a fund-raising event. The incident occurred after Rios declined to sign an autograph for a young fan, the same day he went 0 for 5 with 5 strikeouts in a game against the Los Angeles Angels. An older man yelled "The way you played today Alex, you should be lucky someone wants your autograph." Rios then replied with "Who gives a fuck", repeating it until being ushered into a vehicle. Rios did apologize the next day, but was eventually placed on waivers and claimed by the Chicago White Sox later that year.
One of the most famous heckles in music history occurred at a Bob Dylan concert at the Manchester Free Trade Hall in 1966. During a quiet moment in between songs, an audience member shouts very loudly and clearly, "Judas!" referencing Dylan's so-called betrayal of folk music by "going electric." Dylan replied: "I don't believe you, you're a liar!" before telling his band to "Play it fucking loud!" They play an acidic version of "Like a Rolling Stone". This incident was captured on tape and the full concert was released as volume four of Dylan's Live Bootleg Series.
Many stand-up comedians devise a strategy for quashing such outbursts, usually by having a store of retorts (known as "squelches") on hand. The idea is to get the audience laughing at the interruption.
The comedy TV series The Muppet Show featured an iconic pair of hecklers named Statler and Waldorf. These characters created a kind of meta-comedy act in which the show's official comedian, Fozzie Bear, acted as their usual foil, although they occasionally made jokes at other characters as well.
Another notable use of heckling in comedy is in the cult favorite series Mystery Science Theater 3000. The series involves a man (either Joel Robinson or Mike Nelson) and two robots (Tom Servo and Crow T. Robot) sitting in a theater mocking bad B-movies. The style, coined as riffing, is continued with commentary based series such as Rifftrax and Cinematic Titanic.
In one of Rowan Atkinson's plays 'The School Master', a heckler interrupted his play by shouting out loud when everyone was laughing. Immediately, Rowan retored by saying "I have a detention book...", leading to the audience laughing at the interruption.
See also 
- Audience Participation
- Mystery Science Theater 3000, a TV show built on humorous heckling.
- Troll (Internet)
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- Glover, Tony (1998). Bob Dylan Live 1966 Liner Notes. New York: Columbia Records. p. 7.
- Conway, Andrew. "You're Ugly, Your Dick Is Small, and Everybody Fucks Your Mother—The Stand-Up Comedian's Response to the Heckler". Maledicta Vol. 11, December 1995.