A Goofy Movie (1995)

Continuity mistake: At the end,when the car blows up, Goofy is blown out of his shoes and into the roof of the house. But as the movie fades out,he's got his shoes back on. How?

Max: Dad... listen, about my directions... will you listen to me? I gotta tell you something, Dad.
Goofy: Why bother? I'm probably too stupid to understand anyway, right?
Max: Forget it.

Trivia: During the concert scene at the end, after Max swings over the stage and knocks the security guard into the monitor, the camera pans to the cheering crowd. Toward the bottom right corner you can see Mickey Mouse in the audience.

Question: I have looked all over the web for the wav of the sound Goofy makes whenever he is falling, which he does at least once in every cartoon he is in. It sounds like 'yah-ha-ha-hooey.' I have never found it, so can someone point me to where I might be able to download it?