Pets: BJ learns that having a pet is a much bigger responsibility than he ever expected when he offers to take care of a friend's dog! When he accidentally loses the dog, everyone has to work together to find it! Vets: When Baby Bop's favorite teddy bear is torn, she wants to take him to the veterinarian for help. Barney and Riff pretend to be veterinarians. They show Baby Bop that there's nothing to be afraid of, because doctors and veterinarians are our friends too!