This is just Percy getting the beginning of hid comeuppings in a totally hilarious way.

It's a pretty good dubbed over version of that scene (maybe it was made for it) the onlt difference is that everyone is Welsh and the dialogue is funnier. "Now i got your attention! Watch me jump! I jumping! I jumping i am! Everybody watch me jump!

I didn't know about the squeaky voices thin until later, but its still pretty funny.