I move up on people's asses when they don't get out of the way for faster traffic. Sometimes I feel the need to go well over the limit, sometimes not. I ALWAYS look in my mirror and if I see someone coming, I move over as soon as it's possible. I don't act like a jackass and make them maneuver around THEN play games with them by slowing down or speeding up to keep them from passing me or someone else.
You sir are act like jackass on the road. Plain and simple.
I hear tell they do tend to flock together kinda like birds.