Your friends invited you out to go clubbing. While you're out, your friends all spread out to do their own thing.

Left alone with your thoughts, you ordered a few shots, which turned out to be a bad thing since now you have to use the restroom. So you get up and go down a hallway to where the bathroom is.

After you used the bathroom, you started to walk back to the party. You weren't looking where you were going, and you suddenly bumped into someone.