Patrick Breaks Fred's Leg (Again) is an episode of The Silly Adventures of Patrick Star.
Transcript[]
(Fred walks out of the hospital.)
Fred: Ahh, my legs have finally finished healing.
(Fred nearly trips into a ditch, but he balances himself just in time to keep from falling.)
Patrick: (from inside the ditch) Hi, Fred! How's it going?
Fred: How's it going? I just spent the last three months recovering from leg injuries that you inflicted!
Patrick: Sorry?
Fred: What are you doing in that ditch, anyway?
Patrick: Diggin'.
Fred: Digging for what?
Patrick: I don't know.
Fred: You don't know what you're digging for? Then why are you digging?
Patrick: Why do we do half the things we do? Why do we exist at all?
Fred: Great. Now you're getting philosophical on me. (turns around) See you never.
Patrick: Watch out for...
(Patrick hears a scream and a thud.)
Fred: MY LEG!
Patrick: ...that other ditch.
(What a twist!)