The other friend was driving a Jeep CJ with the plastic doors/roof. I forget what he'd gotten stolen from him, but in order to get to it, the thief sliced through the plastic window. Instead of just unzipping it.

I had a window punched out so a thief could steal the 2 floppies with (original) Railroad Tycoon on it. I replaced it for $30 (it wasn't mine.)

Luckily, the door was already unlocked, so he could have just opened it and taken it.