Via flashback, the series has shown Homer going bald in a variety of ways. Most recently in an episode entitled “Homer Scissorhands,” it was revealed that Homer began losing his hair in high school, perhaps from loving and brushing it too much. A previous episode entitled “And Maggie Makes Three” showed him pulling out more and more of his hair each time Marge told him she was pregnant. And before this, in the episode “Marge on the Lam,” it was revealed that Homer once volunteered for an army experiment just to get out of dinner with his sisters-in-law. The experiment involved being injected with a serum that would cause hair loss, along with giddiness and the loss of equilibrium to boot. Oh, that Homer.