When did Paul's father get angry?

(Read the text and answer the question)

On weekends, Paul and his family went to the park. They went on a picnic there.

On picnic days, Paul liked to watch and feed the animals, play around the park, listen to the birds' singing, and watch the little rabbits running around.

Paul's mother made simple sandwiches on picnic days, because both his mother and father didn't like to cook on picnic days.

Paul and his family liked to go to the park, because they loved being outdoors and feeling free. Moreover, they could relax there.

Paul and his sister play around the park and feed the animals.

Paul's mother likes making sandwiches, watching her children to play. She also loves being outdoors and feeling free.