If one of your favourite games as a kid was I Spy or Where's Waldo, get ready to be entertained. Whether intentional or accidental, objects, animals, and people sometimes match their surroundings perfectly - or completely blend in with them. If you're in the military, camouflage wear is necessary to keep a low profile. If you're a chameleon, you need to change your colour a few times a day to hide from predators. When your shirt is the same pattern as the wall behind you, though, that's just weird. Are you sure you didn't plan that?