I must be British

I have to post this because it is too funny not to:

I was just walking down the street near our flat and was waiting to cross at the crosswalk (one of the ones where cars are forced to stop). A young guy in a brand new BMW M3 stopped and let me cross but he also made all sorts of rude faces and gestures to indicate that he was not very happy about me holding up his evening. Once I got to the other side he pulled up next to me, rolled down his window, and said:

"You know who you look like? Harry Potter!"

And then he laughed and sped off!