King of the Hill - Season 6 Episode 16 -

When Texas is out of Hank's favorite Alamo Beer, he is eager to find out why. When his questions go unanswered, Peggy gains employment at the company to find out. Peggy doesn't want to divulge the reason because of a clause that she has signed--a vow of secrecy. Hank turns on Peggy for her company loyalty, and Peggy turns on Alamo, for their customer disloyalty.