Weird. I felt like this story was a rehash, but it was just different enough to be pretty decent. It had aspects of Funzo, any science fair episode ("bent my Wookiee," model of Westminster Abbey, "Tell-Tale Heart" parody, et al), Bart-befriends-Martin, caring for the Springfield Retirement Castle members (a "shocking" death there?), Ned not knowing connotations of words he's used around Rod and Tod, Homer getting fired (sort of) and award ceremonies at the power plant.