right|thumb|A heckler in Washington, D.C., leans across a police line toward a demonstration of Iranians during the [[Iran hostage crisis, August 1980.]]
A heckler is a person who harasses and tries to disconcert others with questions, challenges, or gibes. Hecklers are often known to shout discouraging comments at a performance or event, or to interrupt set-piece speeches, with the intent of disturbing performers or participants.
Origin
Although the word heckler, which originated from the textile trade, was first attested in the mid-15th century, its use as "person who harasses" is from 1885. To heckle was to tease or comb out flax or hemp fibres. The additional meaning, to interrupt speakers with awkward or embarrassing questions, was first used in Scotland, and specifically in early 19th century Dundee, a town where the hecklers who combed the flax had established a reputation as the most vocal element in the labor force. 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 and 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.
Politics
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Politicians speaking before live audiences have less latitude to deal with hecklers. In the early 1930s, before becoming Premier of Ontario, Mitchell Hepburn stood on top of a manure spreader, apologizing to the crowd for speaking from a Tory platform, at which someone in the crowd shouted, "Well, wind 'er up Mitch, she's never carried a bigger load!"
Legally, such conduct may constitute protected free speech. Strategically, coarse or belittling retorts to hecklers entail personal risk disproportionate to any gain. Some politicians, however, have been known to improvise a relevant and witty response despite these pitfalls. For example, Harold Wilson, British Prime Minister in the 1960s, responded to a heckler disrupting his speech in the following manner: