Maybe it was just Danny's own experiences with a villain's attempt to kidnap, clone and blackmail (among other things) into his agreeing to be mentored.... but was it just him or was that a disaster just waiting to happen?

"But that's awful! What kinds of heroes are these? Kids aren't villains, but if the only ones willing to teach them are, what do they expect?"

Danny nods at that.

"Cool. I know a dragon princess ghost back home. I'll have to let her know that there are other dragons around. Her brother's kind of a jerk, so..."