"Just because they're a physical being doesn't mean that they can die. Even immortality has its limits, though, I suppose." He's well aware of that fact, but he'll drop it there for now.

Portals? He can think of one other person who could do that... but this isn't that person. Nor is that person worth wasting much of a thought on anymore. "I'm sure you would have broken your neck and been an even bigger pain in my ass." There's almost a tease to his tone, even if he truly does mean that he's sure he would have killed himself somehow doing that. "Good thing I did find you before you made the revelation of flight."