Arthur, Season 1 (1996)

Arthur and Francine ride their bikes to Muffy's House. When they get there, they see duck workers rolling out new lawn. A man with a hedge trimmer walks past them.

Francine and Arthur:
(gasp)

Francine:
You think you can do it, Arthur?

Arthur:
I've got to, Francine! [surreptitiously walks over to the mailbox and puts in an envelope]

Muffy:
Are you sure this is going to be done in time?

Mrs. Crosswire:
Muffy, why don't you go check the mail?

Muffy:
Okay. Maybe there's something for me!

Francine:
Muffy's coming!

Muffy comes running

Arthur:
[hides behind a tree] Oh no! If Muffy catches me, my entire birthday will be ruined!