This is the first time that one of the Salamanca cousins speaks onscreen.
The entire conversation between Gus and the Salamanca cousins at Los Pollos Hermanos consists of just nine words.
Gale initially refers to Walt as "Mr. White", like Jesse does. Walt immediately corrects him, insisting that "Walt" is fine. He never says this to Jesse, indicating that he sees Gale as more of an equal; a fellow chemist worthy of his respect. Jesse, on the other hand, he sees as a subordinate.
Walt pays Old Joe one hundred hundred-dollar bills for a grand total of $10,000.
Hank's reference "you didn't inhale" to Walter is taken from when Bill Clinton, when first running for President, was asked if he ever smoked pot, to which he responded yes, but that he didn't inhale.