My biggest unwritten rule is to assume that NOBODY sees you on track
(except those goddamn corners workers who claim all four tires were in the dirt when I CLEARLY had some tire still remaining on the exit curbing...)
Yes, it's frustrating when slower cars slam the door shut or brush you off track on the exit... but that's because they didn't see you.
NOBODY SEES YOU!
That car just gave you a point by? WRONG! He's jamming to some sweet tunes and finger shaking to the rhythm.
THEY DON'T SEE YOU!!
The slow C-class car is hugging the right line and letting you by? WRONG! He's simply catching up on his text messages and will be cutting back over because...
HE DOESN'T SEE YOU!!!
Hopefully I made my point. Some teams are more blind than others, but assume everyone has Stevie Wonder in as their hot-shoe and drive accordingly.
Also, don't block. That's just a dick thing to do... unless it's Csaba driving a red Prelude (now silver E46). In that case, by all means, show him your numbers (on the door!) I did this with the Mirada back in October. He IMMEDIATELY dropped back and never got closer than 100 feet from the old Chrysler unless he was passing in a straight.
The Pentastar whisperer