Hanna and Timo are playing together as grandma and grandchild. They have built a lovely playhouse and are "cooking" delicious strawberry jam. Then little Anton comes along and wants to join in, but Timo and Hanna prefer to play alone. Anton feels left out and gets angry. In his frustration, he causes the beautiful house to collapse, which prompts Hanna to kick him on the shin. But only the donkey is allowed to kick! In return, Anton pulls Hanna's hair, but no: only the little monkey is allowed to pull hair. So what can children do in such a situation?

With the help of this humorously illustrated story, children learn playfully not to take their anger out on others but to solve their problems by talking to each other. An important book for children aged 3 to 6 years.