Took the family to Applebee’s, waited 10 minutes for a spot, only to have a car full of girls swoop in and steal it. When I told them I’d been waiting, the driver just smirked, “Too bad, your name wasn’t on it.” Furious but calm, I parked elsewhere. Inside, I noticed them downing shots, clearly getting wasted.

An idea hit me. I slipped our waiter $20 to tell them—ten minutes after we left—that someone called saying their car got keyed. I didn’t touch their car. Later, the waiter told me they completely lost it—screaming, calling cops, the works. Police checked the car, found no damage, but saw the girls were too drunk to drive. They waited outside, and sure enough, the girls stumbled out, started the car, and instantly got busted for DUI.

The waiter filled me in a week later, still laughing. I gave him another $20. Best $40 I ever spent—karma handled the rest.