Nine's copy of All for One turns out to be operating on Santa Clause rules
"Okay Problem Child, let me see if I've got this straight: you run into a Villain, as per usual for you."
"Yes sir."
"You see him chasing after two kids and saying something about taking the boy's Quirk, so you intervene to give the kids the chance to run away."
"Naturally."
"The Villain takes flight and drags you with him, but you break free and damage the Support Gear he has."
"Uh huh."
"Said Support Gear turns out to be more like a life support machine, and its damage causes the Villain to suffer what you can only describe as "the human equivalent of an action figure melting in a microwave" when he tries to throw a lightning bolt at you."
"I'm probably going to have nightmares until the day I die, sir."
"I would too. Anyway, the Villain falls out of the sky, Ryukyu catches you before you can fall to your death, several lights come flying out of the falling corpse, and now you've got an extra six Quirks, is that right?"
"About the size of it, sir."
"...you do realize this is how you get the title of Problem Child stuck with you forever, right?"
"Considering you're the first teacher I've had that would say it with hardly any venom behind it, I take it as a compliment."
"What?"
"What?"