Supervision

An old story: Two men were caught up in a fire, one was blind and the other paraplegic. The former put the latter on his back, whose good vision guided both of them out of the trouble.

A small side-kick not told with this tale is: a third man on the scene, with good vision and no weak leg, could not escape. No, this is not an IQ test to pull your legs. This man just saw the fire around the door and thought that it was too dangerous to go - alas, too painful for his feet to step on the red hot floor. (This was of course not a problem for our paraplegic hero - the pain was not on his feet. We can imagine he put as much encouragement as he could to sooth the blind man's feet, just to make sure they could get out of the fire !)

I gradually learn that this paraplegic hero is often called supervisor, and the blind trainee. Some heroes of course have no weak legs and can theoretically get out of the fire by themselves. Nonetheless it seems better to sit on the back of some blind one - not (only) to save the latter, but it is more difficult to guide your own legs without any consideration of the feeling.