I actualy wish people would try and race me more often... even Nissan GTR owners stopped trying... yet I'm having fun doing these little races :D
For the stupid part of the population though, it's a daily occurence. I've seen people block green lights (left turns) for me, then turn on the red light so I can't pass.
One truck almost drove over me as he swerved into the oncoming lane right as I was passing him (and I wasn't even riding aggressively... perfectly smooth passing, wasn't tailgating beforehand, when all of a sudden I had to ride on the other side of the oncoming lane's white line not to crash). I kept riding beside the truck for a big 3 seconds, and the old man just kept starring at me with some kind of disgust in his eyes, like I had done something to him or his family.
I really wish I had my GoPro running when these things happened. Since these occured, I record 24/7, especially boring city rides sinces it's when people tend to do stupid stuff on the way to work.