In bringing up a child, parents can make mistakes which sometimes result in the child having nervous disorders - for example a vegetative neurosis. Two parents and a grandmother decide to bring up a longed-for boy mainly with humour. Daddy by turns lisps at the baby and by turns very loudly impersonates various animals and feels offended when the baby bursts into tears. Mum takes delight in jumping out from a hiding place at the boy and is surprised that he is fearful and does not laugh. Little Jaroušek is now four years old and the grandmother forces him to eat soup. She threatens to call for a chimney-sweep and the boy learns to hate both soup and chimney-sweeps. One day, the melancholic boy leans against a climbing frame in a park and fails to hear his parents calling for him. They ask a park guard for help who gladly bullies the boy. The mother goes to see a doctor in a health centre with the boy who suffers from a tic in his face. She rejects the doctor's opinion that the child is probably frightened by somebody, and, offended, leaves the surgery. The parents and the grandmother agree - they do nothing but bring up the child by fun! The boy blows up a paper bag and there is a loud bang. The scared parents jump up from their armchairs and the grandmother, all of a sudden, has a tic in her face. The child is indeed horrible!
Film from the series Film Satirical Occasional Thorn.