I was travelling to work this morning on the DLR - that's the Docklands Light Railway for anyone who doesn't know and was surprised to see a man wearng a bowler hat.
Now, if he'd been on a train going to the City, then maybe. But he was on a train going to Beckton. They eat people in bowler hats in Beckton. Not a wise move by him then...
Important - do not confuse a bowler hat:
with a bowler soup:

