A little joke for your morning

In my class

Teacher: Zulu,why are you down to day?

Zulu: because mum is in hospital and dad is at the police station..

Teacher: sorry dear do you want to go home?

Zulu: yess!
(Zulu, goes home and teacher ask the remaining pupils)

Teacher: why is zulu's father at the police station and the mother in hospital?

Pupils: because his father is a policeman and the mother is a nurse

Teacher: stupid child! go and call him back!!!