Grow up

Teacher in a class:
Little Billy, what would you like to be when you grow up?

Billy:
I wanna be a fireman, just like my Dad..

Teacher:
Very good! Little Sammy, what about you?

Sammy:
I want to be make buildings, just like my father.

Teacher:
Very nice! How about you little Jimmy?

Jimmy:
I wanna be racing driver!

Teacher:
Is you Dad a racing driver?

Jimmy:
No, my dad is an asshole!

Hahaha.