Common sense is one of those things that you either have, or you don’t. You don’t have to be born with it – somewhere along the way most of us figured out how the world actually works.

But, some people just don’t get it. From the guy who pees too close to you at the urinal, to the boombox junkie who wants everyone within earshot to listen to his music, these 40 dumb bumpkins prove that, yes, it is absolutely possible to have zero common sense take over your brain!