I have a superviser (1st engineer) that does this. and when he gets into a problem I try to stay one step ahead and hide the tools he will probably look for to modify etc.. and work on reasoning with him. better ideas?
Well,
My wife had a problem losing my tools or misplacing them because, GEE, they don't resemble my pocketbook!

I bought the girl her own tool box and lock mine up.
If he's a friend, work with him. If he's like most supervisors I've known, find the chain and several hundred fathoms of deep blue, your choice!