Dear Trapped: Your co-worker’s behavior is absolutely unacceptable. But since she and your boss are friends, you’re right -- and smart -- to want to tread lightly. Continue to keep track of these indiscretions and try addressing them with her directly. At the very least, it’s more than reasonable to ask her not to touch your personal belongings.

My co-worker is close to our boss, even spending time with her outside of work, so I feel stuck. What should I do?