A few years ago I was over at a friend’s house goofing around with their young daughter. We were playing this game where she would hide behind the couch and peek out from the top or the sides to “surprise” me. She was too little to understand that she needed to randomize her pattern a little more. She stuck to a strict left side, top, right side, top pattern. She popped out of the left side and I pretended to be scared. “AAAAAAA!” I know she was going to pop out from the top of the couch next so I quickly jumped up on to the cushions and cut her off in mid hop with my own “RRRRRAAAAHHHH!” I was quite surprised when she fell backwards putting a hole in the drywall with her head.