cant remember the name

by rita
(dartford)

It was a chinese version of the karate kid bits and pieces stand out but this old guy teaches this young lad to fight. One part he tries to escape and the old man ties a string around he's toe so he tries to pee in he's wine flask but the old man moves and it goes all over himself, I used to watch it all the time as a kid with my brother but cant find it anywhere on the net please help....