I know this is our chance to complain about equipment and supplies but Sparky's post above reminded me of something from long ago.
I used to work in an office where I kept a tube of toothpaste in my drawer for occasional use after lunch. My boss (who probably made twice what I did) always wanted to "borrow" my toothpaste.
When I went on my vacation, I locked my desk because there was nothing official in there that anyone needed and I didn't want to come back and find that someone had "reorganized" my supplies for me (which sometimes happened).
When I got back, someone told me that my boss had tried to hire a locksmith to come in and open my desk while I was gone. The guy was working away at it when someone else walked up to my boss and asked her what she wanted out of my desk and she said: "Anna's toothpaste, I want to brush my teeth!"
Thank God, someone else was able to lend her some so no one had to change the lock on my desk! I personally am not in favor of employees leaving desks locked when they go on vacation and the fact that I felt I had to do that, in order to be able to find anything at all when I got back, is a sad commentary on the inability of some people to mind their own business!
Sometimes, it's not the value of an item but the principle involved.
My boss had a desk and the money to buy her OWN toothpaste.