Sarah proves why you do not mess with her to this unsuspecting Fulcrum agent. We heart you Sarah.
Added:
Casey and Chuck go for a little swim as they attend a wedding of Casey's former lover.
Added:

Chuck Season 1 Episode 12 Quotes

I'm glad Casey had someone at least once in his life. I was beginning to think downstairs, he was built like a Ken doll

Chuck

Ilsa: We had nothing on him, the only way to get it out of him...
John Casey: By screwing it out of him? How um.. French