Seen on a big truck
There's road construction on a major Highway by my place. It happens to be on a big hill. The "slow truck lane" is closed leaving only two lanes for the traffic. Most tractor/trailer rigs are pretty pookey going up the hill so there's typically a mini-bottleneck. Needless to say, we motorists are an oh so very patient lot. As I was doing my best to zoom past a dump truck with tandem trailer I saw scralled on back in the dust and dirt: Don't honk, push!
I didn't do either, I smiled. For a long time.