put bologna on his car and ity eats away the paint

suck on a jolly rancher for about 30 secs(to get it sticky) then press it on his car windows(so that each one sticks to a window) when he goes to pull them off it cracks his windows

GL, people like that deserve far worse then what i have said, like maybe even sugar in the gas tank, or a blunt object being shoved into their eye