Originally Posted by
ZippyThePinhead
When I was in high school I found that a wad of gum was even more effective, but that is when I was young, dumb, and lawless. The sun melts gum very, very well, provided it stays put long enough.
haha...Well, if the driver REALLY deserves it....

if not, i'll practice my patience virtue and follows Dscott's advice and "smile and wave!"