I still act very polite to almost all people, unless they're being rude first. As breukelen said, no need to start shit, but it's good to finish it if you're right.

I don't think, however, most people are polite, or that you need to be polite to get somewhere in life. 'Successful' people aren't known for always necessarily being polite, some are, some aren't.

I don't know why I keep doing it, call me crazy, I guess it's a golden-rule thing or something else.