My favorite thing with David was a PC event with lots of the pioneers of the PC, including him and Bill Gates on the panel. When they went to David and asked him about Ctrl-Alt-Del he said "I invented it, but Bill (Gates) made it famous." Gates didn't laugh. He didn't smile. He GLARED! After a moment of stunned silence the audience went "woooooooooOOOOOOOOOOOOO!!!!!!"
I loved it.