Stephen Hawking: You made an arithmetic mistake on page two. It was quite a boner. Sheldon: No, no ... that can't be right. I-I don't make arithmetic mistakes. Stephen Hawking: Are you saying I do? Sheldon: Oh, no, no, no, of course not. It's just, I was thinking.... Oh, gosh, golly, I made a boo-boo and I gave it to Stephen Hawking. Stephen Hawking: Great, another fainter.