"I can see how it'd be frustrating," Stiles said. All he really wanted was home, with his dad. But he was also really hoping his dad didn't end up here. Or Scott, or Lydia, or Derek, or any of them. They could get on just fine without Stiles. Or at least have one less fragile human to worry about. Kira could handle herself. Scott and Derek were werewolves. And at least Lydia could--yeah. Stop that train of thought right there.
He picked up one of the fries that had cooked itself into a tiny compressed spiral and began pulling it apart. "Science stuff is a nightmare headache but I'm sure the other people will get it. And it kind of makes sense that no one really runs this place, but--" He looked up. "Group efforts are great but without a leader or small group of leaders they tend to fragment and break apart."
So here was the moment, the big reveal, the part where Stiles spilled his guts. "Um, I'm pretty much the only human I know," he said. "Well, not counting my dad and Mrs. McCall." He dropped the fry back into its container. "I'd rather this not get out, you know, everywhere, but--" He shrugged one shoulder awkwardly. "My best friend is a werewolf alpha. Then, this girl I had a crush on from the third grade turned out to be a banshee. Then there are a couple other werewolves and a pair of kitsune." He spread his hand out wide. "And for a little while, I was something, too."
Because 'something' was a lot easier than 'vessel for an unspeakably evil old thing'. Of course, he wasn't entirely sure that it was out-and-out evil so much as it was just... feeding on chaos and so starved it had had to go out of its way to make the most of the situation. But it had been pretty bad. Maybe it was evil. Stiles curled his fingers back into fists and looked up at Emma. "So, like I said, I don't want to see that happen to anyone. Ever again."