Audiobook Bob the Builder: Cats and Dogs. Pilchard the cat has to make a trip to the vet for a check-up and gets a fright when Cooper the dog comes bounding in to try and scare her! Tilly the vet is worried, as she has Mayor Madison’s cat coming in later that day and she doesn’t want Cooper to scare her too. Bob and the team decide to help Tilly out by building a reception with separate areas for dogs and cats.