"In England we lived on a short country road. One day driving to town, a tractor, which was behind me, began honking his horn and pointing. Thinking he wanted to overtake, I moved over. He honked again and I put my arm out the window to wave him ahead of me. He honked again. I stopped my Mini, got out and walked to his window and said "what?" He replied, "you left your wallet on top of your car!"