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

Hung around at the bar after small concert, my wife and I started talking about the show with a woman next to us. Then the front-man of the band walks up and we all talk but he and the woman are flirting heavily. Turns into us walking out to go grab a drink at another bar, not that it was sketchy or anything but she indicates she won't go without her new friends (us). Except we couldn't really find a bar, it was some generic family restaurant that served beer so we're sitting across from each other with our beers and the singer and the lady are whispering and making out with each other. It was not make-out vibes in this family restaurant, and they weren't even that drunk, but whatever. Pretty weird night.