After Bobby eats too much sugar one morning, he is mistakenly diagnosed with attention deficit disorder. Feeling guilty about not spending enough time with her son, Peggy decides to give up teaching and be a stay-at-home mother, a decision Hank fully approves of. But Peggy is so bored at home that she starts taking guitar lessons, and composes a symbolic song about a turtle trapped in her shell. Meanwhile, Bobby takes pills for his ADD, and Luanne becomes convinced that she caught ADD from Bobby.