Hugs
So this computer scientist is like a real uptight guy, uncomfortable in his own skin.
He has a hard time relating to people, you know the type, right?
So he's in a bookstore, sees a book called "How to Hug", so he thinks, "Yes, this could really help me."
So he buys it, takes it home, starts to read it, and darned if isn't volume eight of an encyclopedia!