Why do cars feel the need to accelerate and swerve to get in front of me at a stop light or stop sign!!!?? We're both going to stop anyway, and I'm probably going to pass you on your right anyway. If you don't leave me room to pass, then that's just really rude, and if you do leave me room, what's the point?
And one for the bikers:
Why not stop at stop signs? Especially when there are cars two deep in each direction, when you blow through without a care in the world, it disrupts the turn-taking and does all bike commuters a big disfavor by pissing off the drivers. I'm sympathetic to blowing stop signs on empty residential streets if you at least make a motion of slowing down, but out in the busy-traffic public? Come on!