AssHole On Phone. Doesn't matter if you're in the fast lane in a car, walking on the sidewalk, or behind them at a supermarket, these idiots slow down to a complete crawl when they receive/place a call on their cellphone.
Man, I was twenty minutes late for work today. The jerk in front of me got a phone call, and turned into a complete AHOP. 35 MPH in a 55, I just wanted to get out of the car and RHKTTH him!