Homer Simpson is an ill educated moron.  He is a loser of the first caliber and is locked into a perpetual cycle of stupidity and defeat.  Then again, all his best lines were written by rich, over-educated nerds, which made the task of putting trenchant insights into his mouth that much more difficult.  That’s why this little exchange from “The Spingfield Connection” is so great:

“This police radio entertains me with other people’s miseries.  We get a free funeral for Marge, God forbid.  And I can run backround checks on whomever I want! . . . Mohmar.” – Homer Simspon

I’m never one who is 100% sure of his grammar, but it sounds to me like Homer used the according-to-Hoyle version of who/whom there.  It’s subtle, it takes less than a second, and it’s never mentioned again.