A totally different but related example is pitch framing in baseball. Basically catchers will try to catch a pitch using a motion that slightly tricks the umpi

A totally different but related example is pitch framing in baseball. Basically catchers will try to catch a pitch using a motion that slightly tricks the umpires eyes into calling a marginal ball a strike. It does have a statistically significant effect and since it has become widespread catchers are judged on how good they are at pitch framing since that is a small but significant part of the value to help the team win. That whole concept goes out the window if MLB ever changes to just using cameras to call balls and strikes!