1. The moron who gets behind you in 70mph bumper to bumper traffic, rides your tail flashing his/her lights at you to get you to speed up. Where the hell do you think I am going to go?
2. The asshole talking on his/her cellphone in the far left lane going less than 70mph forcing you to pass on the right
3. The idiot who putts along in front of you forcing you to pass him, at which point he speeds up wanting to drag race you.
4. The jackass who won't get over one lane to let you merge and then glares at you as he basically forces you into the guardrail.
Just a few examples as to why I think the new 2011 car models should all be equipped with a death ray.