Philo's Invention / Watchdog Blues / Leave it to Mother

S2 E7: When Rocky tries to steal Philo's science project, Philo daydreams that he's a brilliant toy inventor. Everything goes well in his fantasy until rival toy maker Rocky kidnaps Philo and forces him to build nasty toys. Ed and Edna Flintstone reluctantly allow their pet, Dino, to sleep in the house. But the puppy proves his worth when a burglar breaks in.