What's your biggest driving pet peeve?

[KrishaSpecialK]

It's so hard to pick just one, but I think my biggest pet peeve would be people who don't know how to drive or how to follow simple traffic laws, then throw their arms up and yell like you're the one who's messed up. I also hate it when people ride your bumper, even though you're going the speed limit. Cell phones too. I don't know how many times I've almost gotten in accidents with people that were on their cell phone not paying attention to what they're doing. Ok I guess I can't just pick one. LoL.