"Ah, ah, ah, ah," Sokka begins, holding up a hand to ward off any more words for the moment, giving Jack a look that's mostly teasing suspicion. "First of all, I was kind of hoping it wouldn't be lost on you. And second of all, you might know that I've got no reason to hurt you, but I'm one-hundred percent nothing-special-human, buddy, and I have no idea if you're trustworthy and no way to know for sure until you try to stab me in the back."