Is that asshole Brian from Legal still stealing your coffee cup at work? I suggest that you get The Plug Mug. The Plug Mug($19) is a mug with a hole in it which renders it completely useless without its plug to mug thieves. Just keep the plug safely stowed away from harm (on your key ring or in a vault) and you will find that no one is interested in stealing your mug anymore. Or you can tie the plug on a desk, if the plug is removed, the drink pours out!