Had one two days ago - roundabout, I'm moving with the traffic to the lights, a car HAS to get past me despite there being no space in front of me, so she pulls alongside and once I'm gone from her mirror, I'm no longer there, so she pulls back in again. Squashing me to the curb.
She only stopped when my frantic hammering on her roof got her attention, by which time I'd been pushed most of the way off my bike.
Stupid cow wouldn't even look at me after.
On the plus side, I think there were people in the queue who saw this because I've been given LOADS of room at the same junction since.