Close Encounter?

I was in line at London Drugs at Granville and Georgia today and noticed a thin guy in the next line wearing ratty clothes and a baseball cap giving me a sideways look and then shaking his head. The baseball cap had a red dragon on it and several pins across an odd range of symbology. The face under the hat looked familiar, somewhat — possibly someone I have only seen a bad picture of, but thinner, older, and definitely more worn out looking than the picture, so I really wasn't sure. The person had already sidled over to a line further away, and while we cleared the checkouts at just about the same time the person scurried out of the store before I had a chance to say, "Hello. Is your name Purple?"