1) Sometimes you have two of that chair, sometimes you don’t
2) People passing by your home point at it and say to each other “That’s where that shape-shifter lives.”
3) You’ve told yourself, to your own face, that you’re imagining things and there’s no shape-shifter in your home
4) Mail arrives addressed to RESIDENT SHAPE-SHIFTER
5) (trick question) You’ve been able to change your own shape the whole time