Playing the role

A young lad's father picked him up from school to take him to a dental appointment. Knowing the parts for the school play were supposed to be posted today, he asked his son if he got a part.
The boy enthusiastically announced that he'd gotten a part.

"I play a man who's been married for twenty years."
"That's great, son. Keep up the good work and before you know it they'll be giving you a speaking part."