Dont loan out your tools

Another buddy had a 9.9 evenrude and no boat to put it on. I had a 14 ft aluminum boat and no motor for it. He offered to loan it to me until one day he ever needed it back. I had it for 4 years. He wouldnt let me buy it from him.He borrowed it back for 2 weeks twice. When he was ready to regain permanent possesion, I put new plugs in it and ran it in a barrel for him at my request. After all, I caught a lot of crabs with that motor. It's the least I could do for him.