You Can't Do That on Television, Season 7 (1986)

Principal:
All right Adam, I want you to copy pages 7 to 9,742 in this dictionary.

Adam:
Sir, you can't make me stay here! It's my birthday today! I'm having guests over, a big party, a cake, everything!

Principal:
Oh. Your birthday, you say? Well, in that case, I might let you off...

Adam:
Oh, thank you, sir...

Principal:
I said, might let you off, if you hadn't used that excuse at least 15 times this year, and I don't remember how many times last year. Do you think I'm stupid? I'm not falling for that again.

Adam:
But sir, it really IS my birthday today!

Principal:
Do you think that I'm an idiot? If you'd had as many birthdays as you've claimed in the last couple of years, you'd be... 75 years of age.

Adam:
("old man" voice) Well, how clever of you to work that out, sir! I'm actually 75 today! And you wouldn't put an old man through detention, would you? (clutches his chest as though he were having a heart attack) My heart can't take it.

Principal:
(rushes to help Adam out of his seat and to the door) Oh! No! Easy, sir! Come along now... oh, by the way, happy birthday.

Adam:
("old man" voice) Thank you, young lad!

Principal:
And many happy returns, sir. Bye-bye!

Adam:
(leaving detention room) Bye!

Principal:
And have a good day.