In my younger years I helped friends and family however I could... Helping them move in 100 degree heat without breaking a sweat ( I was very active in health and sports ) working on vehicles and building street rods in my garage. Friends would borrow tools or use the garage from time to time, then stuff started going missing or not put away ( I am very **** about organization ) I finally had enough, friends would still ask to borrow this or that tool even when they had the same tools because they couldn't find them or too lazy to look. One told me "If I break or lose it, Ill buy you a new one" I just said, then go buy one! Wasn't being an Ahole, just tired of hunting stuff down. I had cabinets at the time, now almost 20 years later, I have tool chests and carts, They are locked when I am done each night. Everything is cleaned put away when I am done for the night. My wife even asks Why I keep them locked up.... kids, that's why ! Although the oldests are gone they would dig around and just throw them over their shoulders when finished. So, that curbed that, yeah, it hurt feelings but they learned pretty quick that I didn't play around when I said something... Put it back like it was or don't touch it. It was hard at first to say no, and would get that guilt trip / feelings... but soon everyone learns a lesson.