Leonard Hofstadter: [after a motorcycle accident, which no one asks him about] My leg is killing me, thanks for asking. Sheldon: No. Sheldon: But then some poor woman is going to pin her hopes on my sperm, what if she winds up with a toddler that doesn't know if he should use an integral or a differential to solve for the area under a curve? Penny: Um, me? Okay - I'm a Sagittarius, which probably tells you way more than you need to know.