Leonard: Uh, M-Mr. Gates, I'm-I'm Dr. Leonard Hofstadter. We've actually met before.
Bill Gates : Sorry, I don't remember.
Leonard: You were so nice, a-and it was really special to me because you've been such a big influence on my life. I mean, ever since I was a little kid, I've looked up to you like-like a hero. (sobbing)
Bill Gates : Oh, now I remember. Would you like a tissue?
Leonard: How about a hug?
Bill Gates : How-how about a tissue?