 Homer and Marge sign a legal document which officially names Bart as Mr. Burns ' heir . Marge suggests that Bart should spend some time with Mr. Burns . While initially repelled by Mr. Burns ' <unk> , Bart begins to take a liking to him after Burns promises to give Bart whatever he wants out of his life . Bart decides to abandon his family because Mr. Burns allows him to do anything he likes . Bart 's family becomes angry and wants him back , so they decide to sue Mr. Burns , but due to hiring Lionel <unk> as their lawyer , the court ends up deciding that Mr Burns is Bart 's biological father . The Simpsons get a Private <unk> <unk> to kidnap Bart , but the <unk> wrongly takes Hans Moleman instead and <unk> him into thinking he 's a part of the Simpson family . 
