A husband, wife, and their nine kids wait at the bus stop. A blind man joins them later.
When the bus comes, it’s too full, so only the wife and kids get on.
The husband and blind man decide to walk. After a while, the husband gets annoyed by the tapping of the blind man’s stick on the sidewalk.
He says, “Why don’t you put a piece of rubber at the end of your stick? That sound is driving me crazy.”
The blind man replies, “If you had put a rubber on YOUR stick, we’d be on the bus. So, shut up.”