Barney: The lesson of Blauman is that when your boss screams at you, you never scream back. That's why there's a little thing in corporate America I like to call the chain of screaming.
Marshall: Chain of screaming?
Barney: Yes. The chain of screaming starts at the top. Arthur's boss's boss screams at Arthur's boss. Arthur's boss screams at Arthur. Arthur screams at you. You go home and scream at Lily. Lily screams at one of the kids in her kindergarten class. Then that kid screams at her dad, Arthur's boss's boss. And the whole thing starts all over again, Thus completing the circle of screaming.
Ted: I thought it was a chain of screaming.
Barney: It's a circle, Ted. I called it a circle.

Marshall: They always told me that working at a big law firm was like being at war...
[flashback to Marshall at work, at Nicholson, Hewitt and West:]
Marshall: [v.o.] You get out of law school, it's like getting out of boot camp. That first day at work, you're storming the beaches, full of piss and vinegar...
Man: Dude, we're lawyers now.
Marshall: Totally.
Man: We've got briefcases and everything.
Marshall: Freakin' briefcases.
Man: You have anything in yours?
Marshall: Totally empty. you?
Man: Candy bars.
[Marshall and his colleague high five with their briefcases]

Barney: What, that's it? You're upset because a guy talked loudly near you?
Marshall: Barney, I have never been screamed at like that in my life.
Ted: Come on, when's the last time you got screamed at at work?
Barney: I got screamed at three times today. Once in Korean. This is corporate America, Marshall. Screaming is a motivational tool, like Christmas bonuses or sexual harassment. It's just good business.