people who drive in the fast lane and don't get over when cars start approaching from the rear.
people who drive in the fast lane going the same speed as the cars next to them so you can't get around them.
people who drive below the speed limit.
people who brake for no reason when going downhill.
people who drive slower because they are going up hill.
people who speed up when you go to pass them.
people who don't use turn signals.
people who text and drive (i know its against the law but they should be jailed for it, its as dangerous if not more dangerous than drunk driving).
On a similar note:
Will someone please provide the formula for how much a vehicle gains in width as speed increases?
I know for a fact they do get wider as speed increases.
Because, there is no other reason for everyone to apply brakes as they approach a bridge.
It is to narrow the vehicle so it will fit!
.