If you have a cat as a pet in your house, then you’ve probably already witnessed this very strange behaviour at some point in their life. Yep, we’re talking about when cats just stop everything and stand in front of the wall, staring at it for hours and hours. It’s almost like the walls have the ability to show our little feline friends some infinite portal, making them stay in some sort of ‘trance’ for long periods of time. Here are the 30 proofs that will make you repeat “What the hell is it with cats?” over and over again. Well, our explanation is that they must be able to see something we can’t in walls, which is yet another reasons why cats will rule the world one day. Meow!