The Fruity Pebbles Christmas commercial that implies Fred poisoned Barney

This commercial packs a lot of narrative into 29 seconds. Fred feeds Santa, Barney burglarizes Fred's home to steal food, and Santa convinces Fred to forgive Barney. Well, Fred seems to forgive Barney, but watch him only pretend to eat a mouthful of cereal at the end:

Spotted by Michael Blaiklock, who has correctly been haunted by the implications of the commercial for years: