If you can't make a mistake, you can't make anything.
-- Collins's Law
1. Everybody who matters is stupid now and then.
2. If I'm being stupid, that's my problem.
3. If my being stupid makes you stupid, that's your problem.
4. If you think you're never stupid, boy are you stupid!
-- Corollaries ("Rabinovitch's Rules of Sane Dialogue")