Yeah, I see this every day on campus. It drives me insane. I used to try to wave at the offender and raise my voice jst enough to tell them nicely, "Wrong side of the road, bud!" I have since lost patience with these idiots who consistently endanger my safety and now scream at them in the meanest, most hateful voice I can muster, "Get on the right side of the road, a__hole!"
Mac