I quite like this one: 4.4: People keep saying the behavior is undefined, but I just tried it on an ANSI conforming compiler, and got the results I expected.

I quite like this one: 4.4: People keep saying the behavior is undefined, but I just tried it on an ANSI conforming compiler, and got the results I expected. They were probably wrong. Flame them mercilessly. Be sure before you do that your compiler is really ANSI conforming, though. If it turns out you were wrong, they get a legal claim on your firstborn.