Apathy Jack writes:

"Hey Sir, you know we’re not going to be at Classics today, right?"
"Oh yeah, you’re going on that field trip. Where are you off to again?"
"Rainbow’s End."
"What? For what subject?"
"Physics."
"That’s got nothing to do with Physics! There’s no educational merit to that!"
"Well what would we be doing in Classics if we stayed?"
"Watching 300."
"Exactly."
"Hey, that’s about ancient Greece!"
"Yeah, and roller coasters are about physics. Gravity and stuff."
"That’s not the same thing at all!"
"Whatever lets you sleep at night, Sir."