We had a memorial service for Isaac [Asimov] a few years back, and I spoke and said at one point, 'Isaac is up in heaven now.' It was the funniest thing I could have said to an audience of humanists. I rolled them in the aisles. It was several minutes before order could be restored. And if I should ever die, God forbid, I hope you will say, 'Kurt is up in heaven now.' That's my favorite joke.