There's a flip side to the IKEA effect. I don't have a name for it but it has happened every time I've built something from IKEA.

Basically, it all goes together nicely... except for one defect. Sometimes there's a hole drilled in slightly the wrong location, a hinge is crooked, or there's a small gap between two pieces that should be flush against each other. No one notices. But I do. And it drives me crazy every time I look at those pieces of furniture: I walk into the room and ALL I CAN NOTICE is the tiny DEFECT in the piece of furniture that I built from IKEA.