Seaman 1st Class Rickles (WWII) is one of the exceptions in my opinion.
“I shouldn’t make fun of the blacks,” Rickles said, and then proceeded to do just that: “President Obama is a personal friend of mine. He was over to the house yesterday, but the mop broke.”
The black-tie crowd, gathered to celebrate MacLaine, the 40th recipient of the AFI’s Life Achievement Award, alternately gasped at the 86-year-old comic’s put-downs and then found themselves laughing and applauding...
http://www.hollywoodreporter.com/news/don-rickles-president-obama-shirley-maclaine-335308
Only Rickles gets away with roasting the Hollywierdos regardless of PCness.