Master Roshi, Yajirobe and others in “Unfinished Business”

You see, the dragonballs are tied to the one who created them. And, they cannot grant a wish that exceeds their maker's power.

Oh, that's a load o' hooey. You're makin' it up. You just don't wanna admit that you're wrong. Yeah. [Korin slaps Yajirobe's face with his tail]

Hey, I thought I told ya ta can it, stupid!