Husband and wife are waiting at the bus stop with their nine children. A blind man joins them after a few minutes. When the bus arrives , they find it overloaded and only the wife and the nine kids are able to fit onto 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 had put a rubber at the end of YOUR stick , we'd be riding the bus, so shut the hell up!!!