after trading his grandfather's military junk at the store Bart received a $100 coupon wandering through the shelves he found the perfect item a brain preserved in a jar on that day the king of pranks died and the god of pranks was born Bart immediately terrified the entire cafeteria with his new friend causing everyone to change their clothes and even Willie had a mental breakdown as punishment Bart's teacher came up with the worst consequence she made him carry the brain to school every day to learn how to take care of it with this unusual child Bart's
life became much more complicated and he soon regretted his purchase unable to leave the brain unattended B Bart asked Homer to look after his grandchild but as soon as Bart parted with his son he began to worry when Homer returned home and lost the brain Bart panicked and rushed to retrieve it he had grown so attached that he now treated it like a real child the family became disturbed by Bart's Strange Obsession and they quietly sneaked off to church without him while he was still asleep however Bart found out and out of spite showed up
at the house of worship there Bart delivered a passionate speech about how we should love everyone until he learned that his brain had belonged to some accountant who had donated it to a university for research in the end Bart came to terms with having to part with the brain and returned it to the university