1. Jimmy Carr
The crowd was reportedly quiet after Carr said at the Manchester Apollo in 2009: "Say what you like about these servicemen amputees from Iraq and Afghanistan, but we're going to have a f***ing good paralympic team in 2012." Tory MP Patrick Mercer called for an end to Carr's career, but one soldier told The Sun he "laughed out loud".
2. Frankie Boyle
Katie Price complained to the broadcasting regulator after Boyle made a joke about her disabled son, Harvey, on his Tramadol Nights show. He said: "I have a theory about the reason Jordan married a cage fighter -- she needed a man strong enough to stop Harvey from f***ing her." Ofcom censured Channel 4, but it broadcast no apology.
3. Bill Hicks
When the late US comedian said in a routine filmed for The David Letterman Show in 1993, "If Jesus came back he might not want to see so many crosses", the whole performance was cut.
4. Stewart Lee
In his You Prefer A Milder Comedian tour, he joked on Top Gear presenter Richard Hammond's accident while filming in 2006, in which he was almost killed: "I wish he had been decapitated and that his head had rolled off in front of his wife." It was called an "extraordinary attack", to which Lee replied: "It's a joke, just like on Top Gear when they do their jokes."