My favorite Monty Python, from Life with Brian:
Reg: They've bled us white, the bastards. They've taken everything we had, and not just from us, from our fathers, and from our fathers' fathers.
Loretta: And from our fathers' fathers' fathers.
Loretta: And from our fathers' fathers' fathers' fathers.
Reg: Yeah. All right, Stan. Don't labour the point. And what have they ever given us in return?!
Xerxes: The aqueduct?
Xerxes: The aqueduct.
Reg: Oh. Yeah, yeah. They did give us that. Uh, that's true. Yeah.
Commando 3: And the sanitation.
Loretta: Oh, yeah, the sanitation, Reg. Remember what the city used to be like?
Reg: Yeah. All right. I'll grant you the aqueduct and the sanitation are two things that the Romans have done.
Matthias: And the roads.
Reg: Well, yeah. Obviously the roads. I mean, the roads go without saying, don't they? But apart from the sanitation, the aqueduct, and the roads--
Commandos: Huh? Heh? Huh...
Commando 2: Education.
Reg: Yeah, yeah. All right. Fair enough.
Commando 1: And the wine.
Commandos: Oh, yes. Yeah...
Francis: Yeah. Yeah, that's something we'd really miss, Reg, if the Romans left. Huh.
Commando: Public baths.
Loretta: And it's safe to walk in the streets at night now, Reg.
Francis: Yeah, they certainly know how to keep order. Let's face it. They're the only ones who could in a place like this.
Commandos: Hehh, heh. Heh heh heh heh heh heh heh.
Reg: But apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, the fresh-water system, and public health, what have the Romans ever done for us?
Xerxes: Brought peace?
Reg: Oh, peace? Shut up!