Husband and wife were waiting at the bus stop with their eleven children. A blind man joins them after a few minutes. When the bus arrives, they find it overloaded and only the wife and the eleven kids are able to fit on to the bus. So the husband and the blind man decide to walk. After a while, the husband gets irritated by the ticking of the stick of the blind man as he taps it on the sidewalk, and says to him,"Why don't you put a piece of rubber at the end of your stick? That ticking sound is driving me crazy." The blind man replies, "If you would've put a rubber at the end of your STICK, we'd be riding the bus..! so shut-up !!