Had a caterham last week desparate to shake me off on the A272 (I appeared in his rear view mirror very rapidly).
Idiot was very dangerous, crossing double white lines (which I will not cross) on left hand bends to get around the traffic. I just waited until the lines broke again or the car the Caterham had just pi$$ed off waved me through safely
Bloke eventually turned off into the Seven Stars, and he was in his 50's easily.
Today though, a classic moment, a mondeo estate screamed past me in a 40 limit, only to be caught by the mobile "safety unit", clearly visible 300yds down the road
I waved as I passed him being spoken to by the car that had pulled him over.