The best way to understand how something works is to build a working replica. That'ss what Artificial Intelligence is about when it models human thought. And a good model must explain not only how the mind works when thinking correctly, but how it makes mistakes. So — an AI model of a person changing lightbulbs will drop bulbs, break bulbs, inattentively buy 40 watt bulbs when it wanted 100 watt, and ham-fistedly mash its virtual fingers into the virtual socket with resulting virtual electrocution. A thought inspired by this collection of AI lightbulb jokes.