Lily: Merry Christmas! What's in the box?
Marshall: Only the best present for the best girl ever. It took me all day to track it down.
Lily: I thought you were writing a paper.
Marshall: Ah, naw, I blew that off. I'll get an extension. School's not important. What is that pitter patter on the roof? Could it be the sound of an awesome Christmas story about to come down the chimney? Why, yes, it is. 'Twas the day before Christmas...