Working in retail, customer service, or in the service industry opens you up to a variety of mind-numbing experiences. The first category would probably be the repetitive tasks that you have to do day in and day out. These chores all require next-to-no brain power and could be completed by a monkey. There are only so many shirts you can fold, walls you can merchandise, or stock-takes you can complete before beginning to contemplate moving out to an off-grid cabin in the woods.