Well, I have stuck is sticker which says "HONK IF YOU ARE AN IDIOT", at the back of my motor bike. There is an even better sticker which says "HONK IF YOU ARE CONSTIPATED". Until recent, none of the fellow motorists on Bengalooru traffic had noticed it. I was in a traffic signal when a hand touched my shoulder. I turned back, an aged person smilingly asked me from where did I get such sticker. After I answered, he appreciated it and said its good, and was about to get into deeper conversation in the middle of traffic :D. Finally somebody noticed it!