Man. He remembers being a teenager: it was a hell of a time. This conversation, it's almost dizzying but he gets it. Teacher blew himself up: check. Weird, but check. Pop quizzes: check. Substitute teacher: check. Twentieth century: check. Most people from Earth tell him they're from the 2000s, so that makes sense.

All he can do is shake his head and grin.

"I'm not so sure you need a frak of a lot more caffeine, man. Seems like you're doing great without it."