Danny simply freezes. That statement right there? Versions of it regularly featured in his nightmares. Right before he got dragged off by his parents or the government ghost-hunting goons for lots and lots of painful experimentation. He hastily blurts out a defense, only half paying attention to what he was saying a he desperately tried to think of a way out of this.

"What are you talking about? Me? Fight? I was hiding in the castle the whole time. And I'm human. Humans can't be ghosts! I'm breathing and everything."