I don't know if I'd say creepy. But it stayed on my mind for a long time afterwards. Down in the city of Victoria a couple years ago, I was passing through one of the streets that was sort of homeless/street performer territory the seaside. I caught this rubby kind of guy watching me from a bench. Made eye contact. I passed by and he said that he knew me. I asked him how or from where.
He asked how old I was and I said I was in my twenties. He just kind of laughed, said I was much older than that. I sat down on the bench with him and talked about a lot of stuff. Guy was a drifter with a mini-van parked alongside the shoreline where they still allowed homeless or travelling folk to park at night. Lot of different stories on him.
I guess what always really struck me was the eye contact. Looked at me like he was looking through me. I notice in many cities, people don't make eye contact. And if you see a homeless bum or a begger, eye contact's the worst thing you can do.