One of my biggest pet peeves are people who double park. I've always wanted to find an amazing way to get back at them. Well, this guy succeeded.
Watch as he gets back at a bunch of double-parking asshats by "painting" parking lines on their cars and leaves a note. Then watch as the drivers get back to their cars, get pissed off, and then read the note left on the windshield.
The note tells them it's fake spray paint and can be easily wiped off. In every case the driver does what you'd expect a complete schmuck would do. Continue to be pissed off.
And this is why they're asshats.