Show them the yellow card
Peter Miller - Magnetic Yellow Card
This magnet was tossed onto your car by a cyclist who felt that you might have been driving in a way that could have endangered their life.
They chose to toss this magnetic note because it can neither damage your automobile, nor affix itself to rubber or glass and will therefore not affect your driving. It serves to warn you.
They chose to toss this magnetic note because it can neither damage your automobile, nor affix itself to rubber or glass and will therefore not affect your driving. It serves to warn you.
Very nice idea, and the inventor provides a link to a business where you can have some magnets printed up. I'm not sure if most people here'd get the Yellow Card reference, but a good idea nonetheless. Although almost anything'll set off road rage in some people...