Look at that pig, stuffing his face with donuts on my time. That’s right keep eating. Little do you know you’re drawing ever closer to the poisoned donut... There is a poisoned one, isn’t there, Smithers?— Burns
Framegrabs from the Season 1 episode, Life on the Fast Lane. Homer gives Marge a bowling ball for her birthday, intending to use it for himself. So Marge takes up bowling to spite him, but falls in love with her teacher.