Ear Worm: "Call Mr. Plow, that's my name/That name again is Mr. Plow".
Harsher in Hindsight: Homer (as a teenager) ruined Barney's life by giving him beer the night before his SATs, and before Barney became a drunk, he was an honors student with his sights set for Harvard University. And if that's not depressing enough, watch Barney's short film on "A Star is Burns" about how his alcoholism has ruined his life.