-- Yard crews in their pickups, pulling those low trailers. They're gonna grease you when they try to pass, and they're gonna pull back over well before their wagon has cleared you. Definitely the worst.

-- Anybody in a diesel pickup. The fumes must elicit anger, or something, in the drivers. They are rolling piles of pissed-off manhood.

-- Anything coming out of a high-school parking lot at lunchtime.