It's a rather wet and miserable afternoon and a husband and wife are waiting at the bus stop, along with their nine children. After a few minutes, a blind man joins them in the queue.

:





When the bus arrives, it becomes apparent that there's only enough room for ten people, so the wife and the kids get to ride on the bus, leaving the husband and the (now most unhappy) blind man

with no alternative but to walk.
So the two men set off in the same direction as the bus. After a while, the husband gets irritated by the blind man's stick constantly tapping on the pavement, and says to him, "Oi mate, your stick tap - tapping on the pavement is really getting on my wick, can't you stick some rubber on the end or something?"

With this, the blind man replies, "What! you've got a flaming nerve whining about my stick tapping! try (perhaps) thinking about the fact that if you'd have put some rubber at the end of YOUR stick, we'd ALL be riding the bus...!
Si thee