Quote from Pam in Frank's Wedding
Mitchell: [aside to camera] It's taken me a long time, but I've finally learned that when it comes to Cam's sister, anything I say can and will be used against me. [flashback:] Cameron: Do you think maybe we should, you know, have the bartender cut Pam off? Mitchell: Oh, God, you know what? She is getting a little bit messy. Cameron: Uh, Pam, Mitchell thinks you're kind of making a fool out of yourself. Pam: Go to hell, Mitchell! You go straight to hell! Whoo!