Wow, I've got so many embarassing stories that it was hard to choose one.

I was in Downtown Victoria one day in Chinatown, and I was in a corner store looking for munchies with my g/f when we see a cute baby strapped to the front of a lady who was working there. So I turn to say to my gf "Look at the cute baby", not realizing that my gf had moved somewhere else and I was saying this to a complete stranger.

This was some 15 year tourist from Germany who barely spoke any English, and was plainly terrified that some six foot tall guy with sideburns walked up right behind her and was talking to her. The conversation went something like:

Me: "Look at the baby!"

Her: *terrified* "Wh...what?!"

Me: "Oh I'm sorry, I thought you were my girlfriend for a second." (wrong thing to say)

Her: "Uh..."

Me: "I thought you were someone else..."

Her: "I'm from Germany..."

Me: "Ok...I'm going to go now"

Her: (obviously thinking by now that I'm either a perv or a lunatic) "Ok..."

There you go, I manage to terrify teenage tourists without even trying.