Alien: Oh, all right. Look, I'm not really your father, OK? I'm an alien who was sent here at this appointed time to kill that guy because he would have destroyed all life as you know it.
Rusty Venture: What?!
Alien: I took the form of your dad because I figured it would be easier to accept. I didn't want to stress you out. End of the world, life on other planets, blah blah blah.
Rusty Venture: Why.. you... SON OF A BITCH! Do you know what you just put me through? What the fuck were you thinking? What kind of fucked up planet are you from where you think showing up as my dead fucking father is supposed to make me feel any better?!
Alien: Okay, take it easy.
Rusty Venture: You prick!
Alien: Look, I just saved your entire planet.
Rusty Venture: PRICK!
All right, fine. You wanna see? Here! *Alien reveals his true form
* There! That would've been better? If I'd' shown up like that out of nowhere. Look at you! You practically crapped your pants. Except him, he crapped his pants!