I voted for teenagers, but only because the specific group that annoys me most kind of fits into that catagory. This may have been mentioned before and it isn't P.C. but the group that annoys me most... The group that I truly feel is the most dangerous on the roads is young women. (ages 16-35) I'm not going to argue the "women drivers" stereotype because I don't believe that just because your female you can't drive. However, It seems that every time I'm tail-gated, cut off, flipped off or see a car weaving all over the road that car almost always is being driven by a distracted, pissed-off or visibly frazzeled young woman. The women talking on the cell phone while applying makeup by the rearview mirror isnt a joke to me because I have literally seen it many times. I drive the speed limit most everywhere I go. And many times I have some young woman ride my bumper for a block or so, pull next to me, flip me off then cut in front of me within inches of taking out my front bumper. And you can't tell me that these women see the drivers they flip off. What happens when the 5'2" 100lb woman flips off a 6'5" 300lb driver and he decides to take her up on her challenge and tracks her down and beats the crap out of her? I'm not saying some men are much better. It's called manners... something a lot of women (and men) seem to forget about when behind the wheel.