[he shouldn't be too surprised; the questions seemed to be leading up to this, too specific for someone who was just curious about powers. And he can't help but feel nothing but sympathy - he was born with his, up until he tried to change it, but he's seen his students struggle with their own, the ones who lived normal lives up until one day they suddenly weren't normal anymore. He both can and can't imagine what it's like

He runs a hand through his hair, trying to find the right words to say] No wonder you were shook up. Are shaken up. That's . . . geez.

[he purses his lips, then reaches out to clasp Cisco on the shoulder in what he hopes is a comforting gesture] Well, we both know you aren't crazy or evil, so I don't think you have to worry about that.