Pokemon: Season 3, Episode 13

3 - 13: Ignorance Is Blissey

Team Rocket can't believe their luck when the Blissey employed in a Pokémon Center willingly gives them the center's entire food supply. As they abscond with the grub, however, an collective pang of conscience tells them to return their ill-gotten booty. However, they are ashamed lest this act of decency ruin their carefully cultivated reputation as troublemakers.