Backlash wrote:

Appreciative people come back with the chips, get praised for being
stand-up people, and get special consideration for next time.

Hell, I'd come back with at least a six pack to wash the chips down
with...
I've done a few things for a friend. Wanted to borrow his wire puller
for a wiring project in my shop, he delivered it. The other day we got a
dusting of snow, he drove 10 miles to come plow our driveway.
It's a pleasure to do things for folks like that!

Jon