Queso the pitbull is afraid of lots of things like the kitchen floor, the printer, and doorways. The owner explains that there’s nothing traumatic about going through a doorway that could’ve messed him up, and that he deals with his fear of walking into a room by simply walking in backwards.

UPDATE: As some have pointed out, it could be related to the hardwood floor. He gets scared of slipping, and gets a better grip walking backwards.