Everything goes well until Leonard reveals to Kripke that Amy dumped Sheldon. This causes Kripke to ask her out on a date. As a result of this, Sheldon challenges him to a duel, but it doesn't take place.

Proving a good education is no laughing matter, CBS comedy “TBBT” & series co-creator Chuck Lorre’s family foundation have announced the establishment of the “The Big Bang Theory” Scholarship Endowment at UCLA

A blog dedicated to the relationship between Sheldon Cooper and Leonard Hofstadter from The Big Bang Theory