Two times I've been asked where I'm from by a stranger it's been from a roadman. One asked if I got spare change for the bus so me being the generous person I am, give him some. He said "aw thanks mate". I said no worries mate, then without missing a beat he said "where are you from, you from around here". I said um yeah just down the street. He nodded and then we had a friendly convo for maybe five minutes. It's also happened when I walk past one or some of them.