A boy gets his revenge on a policeman who has spanked him for drinking from the glass of a visitor to a café. He takes a heap of mud and places his cap over it. He then asks the policeman to keep an eye on the cap because there is a little bird sitting under it. Of course, the policeman's curiosity gets the better of him and he puts his hand under the cap and into the heap of muck, much to the amusement of the boy.
G. Donaldson, Of Joy and Sorrow. A Filmography of Dutch Silent Fiction, Amsterdam (1997), p. 100