Someone I know was driving a rental VW Polo in Europe. The rear wiper jet
had broken off - the water would shoot straight back.

She would squirt anyone who came too close!!

> ...this veteran slow-car driver/right-lane driver/tailgater-hater has
> often fantasized about a small tube leading out the bottom of the van
> into which course sand or tiny (1-1.5m) shot could be dropped at highway
> speed...ya think that might get 'em to back  off? Of course I couldn't
> do that...