Yeah, lots of interesting stories about the neighborhood and your typical "just rolled into the shop" horror stories from people's commutes. Lots of banged-up people coming through there. He also does a big business with bike messengers, and if you end up chatting with them you hear all sorts of interesting stories. Many stories involve running from the cops for traffic violations as if it's just a routine thing. It's true though ... bike messengers don't get tickets as they won't let themselves be caught, and the police aren't going to start a dangerous car chase over a ~$200 ticket.
It's also hilarious how often people waiting for the Chinatown buses try to use his bathroom (and how good he's gotten at rebuffing them). I think he should start charging for bathroom access.