Weston: Why doesn't Mercury or Uranus or Neptune have water?
Me: I don't know.
Weston: We should look in my space books.
Me: We can look, but there's a lot of things about the planets the scientists who wrote the books don't know.
Weston: I know all about the planets! I should tell them.
UPDATED: I have become what I have sneered at.
11 hours ago