Tracy Morgan Among Celebrities Who Have Joked About Those with Mental and Physical Disabilities

"Saturday Night Live" and "30 Rock" funnyman Tracy Morgan just can't seem to help himself. Earlier this month, the actor-comedian stirred up the controversy machine when he said he would stab his son to death if he spoke in a "gay voice" during a standup gig in Nashville. This time, he's taken aim at those with mental and physical disabilities while performing his stand-up comedy routine at "Carolines" - a New York comedy club on Broadway - June 25.

"Don't ever mess with women who have retarded kids. Them young retarded males is strong. They're like chimps," Morgan told the audience.

The Arc CEO Peter Berns has called for an immediate apology and said, "This quote is far too offensive to be excused as comedy."

Berns went on to say the joke "is very hurtful to people with intellectual and developmental disabilities and their families."

Tracy Morgan isn't the first celebrity to cross the line and say things they can't take back, no matter how many apologies and non-apologies are given.

Jennifer Aniston and Charlie Sheen Have Used the "R" Word:

Jennifer Aniston was blasted in August 2010 for her use of the "R" word (though it was aimed at herself) while appearing on Live with Regis and Kelly. Peter Berns, The Arc CEO, said at the time the word was "extraordinarily offensive and inappropriate."

Actor Charlie Sheen has recently used the word when talking about Stern. After Howard offered to help him get a gig, Sheen went to Sheen's Korner and posted, "Why? Howard Stern does that! It's lame, it's r-----ed, it's transparent ..." Sheen goes on to attack Stern's looks.

Wonkette Writer Take Aim at Sarah Palin's Son in Distasteful Satire Article:

Wonkette posted a slew of birthday "greetings" for little Trig on his birthday in April. One of those said, "His mom went to a lot of trouble to leak amniotic fluid over 8 states to make sure that he arrived in this world somewhat alive."

The Wonkette editor removed the post at the request of people who have an interest in special needs causes and said, "A post on this page satirizing Sarah Palin using her baby as a political prop was very badly done and sounded like the author was mocking the child and not just Sarah Palin/Sarah Palin's followers."

The editor went on to say Jack Stuef, the writer of piece, had apologized for writing it.

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