Usually I am so laid back as to be horizontal but one thing above all else really winds me up - idiots that insist on driving with their foot glued to the brake pedal Followed a BMW cabriolet which I'm assuming was a woman [it's a really gay car] and she/he was driving at 29mph and braking even on the straights!! as soon as even the most gentle bend came then we had brakes on for 1/2 mile before the bend. Made for an extremely annoying drive home! The other irritant is drivers that drive up someones exhaust and therefore are constantly braking to avoid ending up in the back seat - God there are some nimwits on the road - mind you I live in Suffolk and swear most of them learnt to drive on tractors!!