After killing the men at the warehouse, Mike tells Chow to ask Peng if she's still there. She angrily yells back in Mandarin, "Of course I'm still here! Where the hell else would I go? What the hell are you guys doing? I gotta get home and take care of my kids! My husband's worried! There are two dead men outside!"
This was Bryan Cranston's submission for the Best Leading Actor in a Drama Series category in the 2010 Emmy Awards - his third consecutive win for the show.
The song that Gale sings is called "Crapa Pelada." It translates to "bald head," and the lyrics closely mirror Walt's life thus far: Ladies and gentlemen, I want to tell you / the story that drives me to despair / For seven months now, I have watched my hair fall out / Now I'm bald, disappointed, sad / I don't know what to do about it.
At the warehouse where Mike enters after killing the two men from the cartel, the woman inside whom Mike points his gun at says in Mandarin, "Please don't kill me, I cannot die. I have three kids. I'll give you everything (all the money)."
Despite stating in an earlier episode that he is a libertarian, Gale has not one, but two books on Marxist-Leninist principles.