LOL! Definitely a patent! The only problem is that I'd always be afraid the guy in the next car would whip out his gun and shoot me!

>As for the !@$#%&, my middle daughter once invented (copyright should apply here, if not patent) a piece of cardboard on a handle, in form of a comic strip baloon, with these signs (plus some thunderbolths and skulls) drawn, to keep in the car and show it to other drivers as needed. When the situation comes, you just hold it to your head so the guy in the car in front of you sees you with the baloon pointing to your mouth :). We had one of those in the company car, worked nice.