I've got a ton of these. I nearly ran over Russell Brand who was jogging past my flats and didn't look where he was going as I pulled out of the car park (in hindsight an opportunity missed).
The best one (I've mentioned it before here) was actually my mates sister when we were about 15. She worked in WHSmith at Heathrow airport and sold porn magazines to Bob Monkhouse (forever known as Bob Wankhouse thereafter).