It’s an iconic line from the golden era of The Simpsons, but a new academic study shows there is a lot of truth to it. 

In season 3 episode 21 of The Simpsons, Krusty the Clown’s homicidal sidekick Sideshow Bob has been yet again released from prison, this time after proving to authorities he has turned a new leaf by developing a romantic relationship with Bart’s aunt Selma through the prison pen pal program. 

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But of course, Sideshow Bob has not changed, and he proceeds to try to murder Selma before his plot is foiled by Bart. As police take Sideshow Bob away, voiced by........

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