When I started this post I should have included the story of the one nighbor who has borrowed my tractor/equipment in the past. He is like your brother-in-law. The equipment came back in better condition that when it lift. He used my JD 550 tiller and took a wire brush to each tine and cleaned the entire unit and greased it as well. He treats everything that way. With him I have no concerns about letting something out. But the other guys are the problem. Our tractors and equipment are expensive and they wear out eventually. Each hour that the post hole auger is in use is one less hour that it will serve me. I don't mind helping out especially as one of the posters said if it is for one of my "senior" neighbors. But there is a reason rental yards charge for the equipment. The equipment has a finite life. What also irritates me a bit is that the borrowers typically have motorhomes, campers, two new cars/pickups in the yard, yet don't have the means for their yard equipment. If I lend out some equipment so someone who can help me out then I don't object.