How can I catch the person stealing my lunch bag at work? Advice

For the past few months someone at work has been stealing the bag I bring my lunch in. Sometimes they take the food, sometimes its just the bag that's gone. Not a huge deal, but it gets frustrating. There are about 50 people that work here, and a little over half use the refrigerator in the break room. Is there some type of powder or ink I can hide on my bag so I can tell who is taking it? Any other suggestions?

Submitted August 28, 2015 at 08:44AM by casually_crazy http://ift.tt/1JBdLNp Advice