They are getting ready for the Bar exam.
Man-go juice!
He finishes her drink EDIT: Apparently this is Conan's joke, so all credit goes to him. I just heard it from a friend of mine and I had no idea.
No one knows, it's never been done before
We may never know the truth.
A sand bar.
I'm sorry, we don't serve food here
You don't hear a law student call themselves a lawyer, or a gender studies student call themselves a barista.