02/17/2012 03:12 am ET Updated Apr 17, 2012

Joan Rivers On Whitney Houston Jokes, Unfunny Comedian On 'Watch What Happens Live'

Joan Rivers had a Whitney Houston joke loaded in the comedy cannon for her E! series "Fashion Police," but she told Andy Cohen they did pull it on "Watch What Happens: Live" (Weeknights, 11 p.m. EST on Bravo).

"Once somebody's dead [we pull it]," she said, "That's why I won't do a Betty White joke, because I'm so scared." So maybe the hint is to find out who Rivers isn't making jokes about to get an idea of who she thinks may pass away soon.

Kate Moss is apparently healthy enough that Joan Rivers had no problem sharing an embarrassing story about her. Or maybe it wouldn't be embarrassing for Ms. Moss. "I was in a restaurant with two gay friends," Rivers said. "Allegedly she, as a friendly gesture, grabbed my friend's penis and just held onto it."

Later, when playing Cohen's "Plead the Fifth" question game, Rivers was asked which comedian has never made her laugh. With no hesitation she threw out a name. "Dane Clark," she said confidently.

"Oh, Dane Cook," Cohen said after a beat.

"Dane Cook," she agreed. "I don't even know his stupid name." Why bother to remember that if his work doesn't impress her.

"Watch What Happens: Live" airs weeknights at 11 p.m. EST on Bravo.

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