What is the weirdest interaction you’ve had with a stranger?

Pretty tame, but it's the one that came to mind first. Walking down the high street, and there's a dude in the middle of the path handing out leaflets or something. Obviously, he spoke to everyone who walked by, me included, but he had a deep, smooth voice like melted chocolate running across your fingers, and it just made the whole thing surreal to me.

Him: Mmmyssstery maaaan?
Me: I'm good, thanks.
Him: Goodbyyyyye~

I kept walking for a few steps before I just curled over laughing.