Before you know it, your mug has been round the office more times that the mail trolley, and has become home to more varieties of beverage stains and lipstick marks than is proper for a decent mug. That's the problem, so how do you fix it? tape the mug to your arm? Superglue the mug to your desk? Quit work start campaigning for awareness relating to mug theft and misuse? These are all worthy ideas, but we appreciate that you don't have that kind of time on your hands (nor want mugs stuck to your hands!).
So enter the Plug Mug. A mug, with a hole in it, which renders it completely useless 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.