Had a very long wait for a connection late at night in Vancouver bus terminal so asked people if anyone played bridge, mostly being met with a discrete and studied avoidance of eye contact.

So went back to playing patience until eventually a young man - I'd guess about 23 or so - sat down and we got to talking. He said he thought we could play a sort of two handed bridge and we muddled about a bit trying that for about an hour until the person he was waiting for arrived. I asked him where he had learned to play as he obviously had some knowlege but equally obviously was not a college person, which it seems most people that age who play, are.
I wanted to do a spoiler and have people guess but don't know how to do it.
He said he had learned in jail and the men there play bridge a whole lot, usually for stakes. No idea if he was pulling my leg or not but he discussed it all very plausibly. It was certainly a somewhat novel concept to me. (I didn't ask him what he had been in jail for).
Just thought it was interesting.