Frank's line when he pulls the gun on the McPoyles ("Yippie ki-ay, Mr. Falcon") is a reference to the infamous censorship of Bruce Willis's line "Yippie ki-ay, motherfucker" in the TV version of "Die Hard".
In this episode, Liam licked Dee's face in order for her not to notice that their shotguns are rubber.
This episode contains the first (and so far only) appearance of "Charlie's BAD Room" - a place on the attic of Paddy's, where (according to Mac) Charlie "goes to be alone and break bottles."
“Whoa! Okay. Okay, don't shoot, okay? Just take whatever you want...”
“Yeah, take the cash register.”
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“Take the girl!”
“What do you mean "Take the girl"?”
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“Don't argue with them. Just go!”
“He's right, sis. You better just go with them...”
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“But they're not trying to take me anywhere...”
“Don't try to be a hero, Dee. Just do what they say!”
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“They're not saying anything!..”
“Well, what's the sense?! If you keep arguing with them, then we're all gonna die!!!”
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“Margaret, you like sweat, don't you? It is "Margaret", isn't it? Of course it is. You know, your eyebrow drives me crazy. It's so thick, i'ts so dark, and so very... connected. You're a stone cold fox, Margaret. You're a stone cold fox, and I want you. I gotta have you, I need you. I want you inside me. But you know that, don't you, Margaret?”
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“When we get out of this, I'm gonna shove my fist right into your ass, hard and fast...
Not in a sexual way! In a "I am pissed off at you" way.”