It might be easier to do as Nancy Reagan once suggested. "Just say no". It would be easier with tools but regarding the topic she was on about it would be terrrribly frustrating.
Yes it's been covered here a few times . I hate like hell lending stuff out as it never comes back the same , and I have no idea why people can't respect another persons tools .
I had one employee almost loose it after I told him he couldn't borrow my sliding compound miter saw to cut his mouldings .
You would of thought I was the worst person in the world by the look on his face .
And you know for a fact it will never cut straight again .
He did manage to go to CT and buy a cheap one . He came over recently asking if I had a tile saw . I told him I didn't , although I have a $1000 Dewalt still in the box . Easier to lie lol
We have another employee here that borrows your stuff , then proceeds to re lend it out to all his friends . I couldn't figure out for the life of me why things were so badly destroyed , then I found out it changed hands five times. I asked him if I could get it back and had to go to a buddies to get it .
So I've definitely learned to tell people NO , GO BUY ONE OR IF THATS TO DIFFICULT , THEN RENT