“- Bob Wiley: You ever hear of Tourette's syndrome? Involuntarily shouting profanity?
- Dr. Leo Marvin: It's exceptionally rare.
- Bob Wiley: Shit-eating son-of-a-bitch! Bastard, douche-bag, twat, numb-nuts, dickhead, bitch!
- Dr. Leo Marvin: Why exactly are you doing this?
- Bob Wiley: If I fake it, then I don't have it.”
Bill Murray - Bob Wiley
Richard Stephen Dreyfuss - Dr. Leo Marvin

I'm not going to use the b-word. I just call you all “unstable creatures”.
Omar Gooding - Sweetpea

“People think that we're crazy. It will never work. You're going to fail... Those are the beginning of every great success story.”
Ione Skye - Diane Court

“- Deacon: I don't think you're gonna drop that torch, my friend.
- Mariner: Why not?
- Deacon: Because you're not crazy.
[the Marinersmiles, lifts his hand, and drops the flare down the hole]”
Dennis Hopper - Deacon
Kevin Costner - Mariner

“[Clark punches the Marty Moose statue]
- Ellen Griswold: Clark, what are you doing?
- Clark Griswold: We watch his program... We buy his toys, we go to his movies... he owes us. Doesn't he owe us, huh? He owes the Griswolds, right? Fucking a right he owes us!
- Ellen Griswold: Clark, you're scaring me!”
Beverly D'Angelo - Ellen Griswold
Chevy Chase - Clark Griswold