Oh, and because I can't let a day go by without reporting some freaky true life story...
In a previous job I worked in a six-story office of about 600 people. We had a rampant lunch thief. And s/he struck floor to floor on different weeks. It goes on for months. It got so bad, HR wanted it handled as a staff morale issue. Whomever was guilty earned a price on their head.
Now the company I was working for does online high-tech reporting, reviews, etc. So we get all the pimped out tech gear before most of the public. And so a few enterprising souls decided to rig all floors of the office with remote, door-sensor-activated mini-web-cams.
We caught the guy. It was one guy. He worked on my team and was someone I inherited from an acquisition. So I am there in an office firing the guy for repeat employee theft. Next to me are a couple of dudes with a TV and the multiple video evidence (some 5x). The guy keeps saying, "Oh, that's not me." Flatly denying it.
One of the more bizarre firing stories I ever had.