Don’t you just hate it when you bring your favorite mug to the office or even at home and then one morning you see some coworker drinking from it, putting all the saliva or lipstick in it. It’s ruined! But do not despair, there is a solution. This cool mug has a plug in it which is ideal for deterring mug thieves. Yeah, let them try to pour hot coffee in this mug now. This will teach them a lesson to not steal others people mugs.