Where is the Rubber?

A man, his wife, and their eight children were waiting at a bus stop. Not long after, a blind man joins the group.

The bus arrives. The blind man and the husband are forced to walk because there's just no more room on the bus.

As they walk together, the tapping of the blind man's cane starts to irritate the other man. Finally, the man says, 'You know, that's pretty irritating. Why don't you put a rubber on the end of that stick?'

The blind man retorts: 'If you'd put a rubber on the end of YOUR stick, we'd both be on that bus.'