Stay in the House
My little sister’s friend was being a real jerk to me. Following me around, mocking everything I said, making rude commentary on everything I did. I told her she shouldn’t do things like that to someone older than her, because it could have dire consequences. Some time later, they convinced me to play hide-and-seek with them, and the rules were to STAY IN THE HOUSE.
I searched high and low for that little brat and couldn’t find her anywhere. My sister had no clue either, and neither of us heard the doors open, so we didn’t think she could be outside. Well, we were wrong. Turns out, the kid decided to say screw the rules and go outside. She hid in the back of my mom’s truck, which has a camper shell that can be locked from the outside.
I guess someone saw that it was open, closed it, and locked it while the kid was hiding inside. Oops. She ended up peeing in her pants because she was so scared. I volunteered to unlock it, but I took my sweet time doing so, staring at her with this smug-as-anything grin. It was a truly great moment of instant karma.
Story credit: Reddit / andianopolis