"You little brat, you promised you'd come down the mountain at sixteen. You're eighteen now. Are you leaving or not?"
"Come on, Master, I'm only eighteen. I'm still a kid. Besides, with the little bit of skill I have now, I'd get beaten up the moment I went out. I don't mind getting knocked down, but I can't embarrass you, can I?"
"Fine. You won't leave? Then I'll leave!"
And just like that, the old man, my master, really did disappear!