You're from one of those places, aren't you? Like Sansa and... God, I don't know. Bunches of people. [He heaves a sigh and then cracks open the casing a bit so she can see the battery he has on the inside.

Well, might as well learn these poor fools a lesson] All right, here. It's a chemical thing. You put two things together that don't get along and with the right combination of materials and the brains to not blow yourself up, you get a bomb. Got it?