How many times do you see someone changing lanes like a Nascar race to pass you just for you to pull up next to them at a red light?  People just have to be the first one.  I've seen a lot of people lately passing in no passing zones on a hill, etc.  They have no brains and it will catch up with them, hopefully not taking us out in the process.  I notice that when I pull the trailer, I notice more stupid behavior, probably because I'm traveling slower.  One last rant...People follow me so close in my truck that I can just see the roof of their car if I'm lucky.  Good luck going under my truck when I have to make a quick stop.