...Perhaps you should reconsider that.

I have not spent much time with this Frisk, but my experience with them was... unpleasant. They were... violent. Unlike any child I had ever seen before.

[It feels strange, to warn someone away from a child the way she'd normally tell them to stay away from Asgore, but... the same thing applies, doesn't it? They're a dangerous element, and she wouldn't want other children being hurt because it made her uncomfortable to say.]