It's usually some really old guy in a big Mercedes Benz drifting into my lane without indication at the last second on a motorway, leaving me less than an inch of room to avoid a collision. And they don't even have a clue that I'm there, proving that they haven't even checked the mirrors!!!
It's happened about four times to me now, and it's always an old guy in a big Merc - and the horror is it's never been the same guy twice!!!
