How did you sleep last night?
OK, I guess. But I think all the studying I did for physics last night affected my dreams.
What do you mean?
I mean that I dreamt about physics last night.
Dreamt about physics? What did you dream about?
Hmm...I think I remember Newton falling out of an apple tree, but I'm not too sure.
Jeez, you shouldn't study so hard.
Nothing like this ever happened to you?
Well. Once I was having a really tough final exam in French, and I spent a whole week just studying. And I had a really strange dream about someone asking me questions in French.
What did the person ask?