Angel: "I don't suppose we know what this dimension is like? I mean, besides fortress-y and demon-y?
Chekhov's Gunman: The prisoner Angel freed will turn up again in "Billy", and the demon Skip in "Birthday". The exterminators sent by Gavin Park are revealed to have been planting bugs instead of getting rid of them.
Evil Is Petty/Undead Tax Exemption: Gavin Park steps up his harassment of Angel Investigations, listing 57 city code violations with the city planners office and sending pest exterminators in the middle of the night to clean out the Hyperion.
Skip: "And you're here to try to...rescue this guy? (Angel nods) But we're on the same side. Shouldn't you be helping to keep him in here?" Angel: "I know. I know. Long story. Involves a girl. I don't like it any better than you do." Skip: "So I really can't talk you out of this?" Angel: "Sorry. I wish you could. I guess we just have to agree to..." (Skip punches him in the face) "...disagree."
Angel: "Uh, what keeps him in the fire?" Skip: "My will." Angel: "How come he's not screaming in pain?" Skip: "Oh, he is. My will prevents him from being heard. I mean there is only so many 'oh my god! The pain! Please make it stop!' that you can listen to before it starts to bug the crap out of you."
The Nose Knows: Skip sniffs Angel and realises he's both a vampire and working for the Powers.
Nothing Personal: Angel and Skip have a friendly conversation before trying to beat each other's heads in. Averted with Lilah — after making the swap, she tells Angel it was "just business". Angel responds by hurling a rebar through the skull of the Man with the Fez. Lilah stares at the corpse, then jumps when she realises Angel is right in front of her.
Angel: "Don't you come at me through Cordelia ever again. You play that card a second time and I'll kill you."
Oh, Crap!: Angel crosses into the fortressed demon dimension. His weapons don't come with him.
Angel: "Sure. Because it would be too easy if I could actually defend myself."
Wesley: "I supposed it is one of the unwritten laws of being a 'dick.' (Gunn give Wes a look) Ah, a sleuth, a gumshoe, Sherlock." Gunn: "All I know is you use the word 'dick' again and we're gonna have a problem. So what is the name of this place anyway?" Wesley: "Van Hoa Dong."
Villains Never Lie: Averted; Lilah claims the man Angel is going to rescue has been unfairly imprisoned. Angel doesn't even bother asking for details. Both he and Wesley know that Lilah is either lying or not telling the full story. Regardless, if Wolfram & Hart want the man released it'll be bad news for someone.