"What would you do if one person here tried to erase someone else and replace them with a copy with less protection against having magic done to them?"

"Oh, I would look deep into my heart and find the right words to explain why they shouldn't do that."

"Um."

"You know, that does sound like a strategy that would work very well on me."

"Security staffing is like that. —Are you all right?"

"...Fine. Are you in the market for another job?"

"The constraints on my time are a little complicated but I'll hear out a pitch! Why do you ask?"

"Some worlds have people being eternally tortured in them and I was wondering if your terrifying mind control powers could be useful for stopping that. I don’t actually have access to them right now but people come through all the time so that might change."

"—her what??"

"I'm also confused by that phrasing but it sounds like you don't want me to use my communication power to understand what you meant."

"Is that not what you call the ability to make people just decide not to do things?"

"I can only make people decide not to do things if there's a good reason why they shouldn't, that they would agree with if they knew about it, and I explain it to them using ordinary words! That doesn't seem much like mind control to me."

"Then how do you guarantee it'll work?"

"If it wasn't going to work, I wouldn't be the one on shift!"