I even tried keeping a stash of pens in my desk drawers, but that didn't help. People know you are likely hiding them and will just go through your drawers when you aren't there. Sometimes they will do it even when you are sitting right there.
This week I found a way to keep my pens in their holder where they belong. Very cheap, and oh so effective.
One tampon, which shall remain in it's wrapper, placed strategically in my pen holder.
Turns out they stop more than leaks.
I've now placed one in each of my desk drawers. My extra stash of pens has remained undisturbed.