I work in retail, so believe me, there isn't enough room on this forum to discuss impolite, rude, etc. LOL!
My major pet peeves:
1. Obviously, impoliteness
2. Being talked down to like I'm an idiot. That's a super perfect way to make sure you get onto my bad side... talk to me like I'm stupid.
3. Being issued orders if you aren't signing my paycheck.
4. I ride a bike and also jog, so I
throw out there... putting your high beams on at me when you are driving on the other side of the road and coming in my direction. Seriously... it makes me lose control of the bike. I don't ride on major or narrow roads, and usually take roads with a bike lane, but have been known to jump a curb to get out of a car's way. If you have two lanes to chose from, your car shouldn't be in the bike lane. And please don't jump the curb with me (had this happen three times this past year alone!). I know some bike riders are idiots, I do my best to not be one of them. Don't be one of those idiots in a car, either.