Kind of a side story here, but no one seems to mind my ramblings...
Anyway this very same guy, Steven has a lot of earth moving equipment, and has a pretty good sized farm too. For 3 years a neighbor and retired guy, Jim Looney drove his trucks hauling chopped corn from field to farm to feed the cows. He never took a penny for doing it either.
What he was doing was building up credit so his old house could have a septic system put in. Well Jim died suddenly back in 2004.
This year his Steven put in a Septic System free of charge ($2000 cost) to his widow. Granted it took awhile for the favor to be repaid, but in essence Jim Looney "got squared up with the world, AFTER he died."
You just never know when a favor is going to be repaid. We all need to do more favors in my opinion.