I keep in the front of my mind two things:

1. they are just car nuts like I am, they are NOT my adversary or enemy. Probably good guys (or kids) too.

2. They ALSO probably realize they have alot to lose and don't want to f around too much. So I might joust a few seconds just for fun but I never let things get anywhere near out of hand (or have any other motorists around). Stupidity is contagious, I don't to infect the other guy with my own.

Oh, BTW, I'm the guy in the Porsche so I ain't got nuthin' to prove.