I remember in high school once, I had a brand new Convertible Jeep with a bunch of custom stuff on it-diamond plate-lift-winch-lights (easily recognizable), and my friend was with me and he had just gotten a a large milkshake. Well, we saw this cyclist in his scrubs (he was a doctor) and we would always see him riding around. So we both look at each other and we both know whats going to happen. I speed up and he lobs that chocolate shake and nails him. Pretty amusing.
Then, about two months later I am at a stop light in my Jeep, top down, music blaring so I was unaware of anything around me. Before the light turns green, I see a hand reach in with greenish scrubs and he grabs my wallet and then takes off and in an instant throws it in a sewer drain.
I wasn`t even mad. His revenge was justified.