Sheldon attempts to befriend Kripke in order to use his super computer at work. As a result, Sheldon is forced to go rock climbing and isn't too happy with the height.

The Big Bang Theory Season 2 Episode 13 Quotes

A fear of heights is illogical. A fear of falling, on the other hand, is prudent and evolutionary


Sheldon [looking at the women's book in a bookstore]: "Coping with the Death of a Loved One." My condolences
Woman: Thank you
Sheldon: Family or friend?
Woman: Family
Sheldon: Too bad. If it had been a friend, I'm available to fill the void