Confirmation Bias

Henry likes wiping up spills. He was eating yogurt and had taken it into the boys bedroom. Probably a bad idea to let him, but I didn't have the energy to redirect him to the table. A minute later I spotted him in the kitchen without the yogurt so I went to find the yogurt before the dogs did. As I picked it up he was right behind me, holding a rag. I asked him where the yogurt had spilled. He pointed right to a little drop on a shelf in the bedroom, and wiped it up.