Walking Stick

A man his wife and seven children had been out shopping and were
planning to get a bus home. While waiting for the bus an blind
old man with a walking stick joined them. When the bus arrived
the bus driver told them there was only room for Eight more. So
the man tells his wife to take the children on and he'll walk
the blind man home. On the way home the blind man kept tapping
his walking stick on the ground and the man said "Could you not
get a piece of rubber for the end of your stick." The blind man
replied, "if you had of put a piece of rubber on the end of your
own stick we could have got on the bus."