who's pooped on my head?

Synopsis

A mole who is just emerging from his hole gets pooped on his head by an unidentified animal; he is certain that it doesn't belong to him and sets out on a mission to discover to whom it does belong. The mole comes across a goat and a pigeon; then he meets a dog who’s enthusiastic with the poop. He finds out the dog was the pooper and exacts his revenge by pooping on the dog's head, both he and the dog are happy. It's inspired by the 1989 children's book by Werner Holzwarth and Wolf Erlbruch.