“Look, Dad,” Clara held up a toy she had just taken off a nearby rack. I could tell by the flippant way that she was holding it that she was not happy about something, so I stopped what I was doing and looked. “What’s wrong with it? It seems fine. It’s just a little doll like all the other little dolls here.” She rolled her eyes and put it back. “No, it’s trying to be like these ones over here. It’s such an Off Knock. I hate Off Knocks.” She started to walk away and I called her back. “Okay, I’m almost afraid to ask, but what is an Off Knock.” “You know, Off Knocks. Like, someone makes something good that people like and…