Modern offices can be a jungle. If the lunchroom thief doesn’t get your Turkey Sandwich you’re probably on guard against those coffee mug thieves! If your office is like ours (where you have one clean coffee mug and 5 un-sanitary ones) – then clean mugs are at a premium. Unfortunately those nice mugs also seem to be the quickest to disappear. Now here’s a way you can combat the mug thieves. Meet the Plug Mug. It’s a coffee mug with a plug that (when inserted) stops coffee from coming out the side. To keep co-workers from stealing your Plug Mug – simply hide the plug in your desk. Of course you can claim innocence when your boss stumbles in all bleary eyed and the mug of coffee empties all over his shirt.