mm wrote:

Actually I asked my neibhgor to help me lift one square of my
sidewalk. He came over with gloves, rubber dishwashing gloves! I
already had a pair of leather work gloves for him, and he seemed to
have no trouble with his half of the load, but whenever I brought up
putting it back, or lifting the last one, he said Yes, but never
showed up.

An example of the Law of Conservation of Favors. Don't use them until
you really need them.

R