As I said, I live and drive in a city that's crammed full of utterly deranged cyclists. Crass stupidity on the part of cyclists is not at all an unknown for me. I stand by what I said.

When I'm cycling, drivers' crass stupidity will kill me if I'm not rather defensive in predicting its possibility. The little things like assuming I'm not moving so they can complete their overtaking manoeuvre with a left-turn through me.

The trait of predicting the possibility of other people doing crassly stupid things, is something I see much less often than I'd like in drivers, particularly those who drive faster than their current sight-lines can justify, assuming that the speed limit signs will magically tell them what's safe.

This is probably a consequence of the fact that many drivers don't have a particularly strong sense that their lack of care will kill them.