Dipper Pines: Go! Mabel, press the red button! Shut it down!
Grunkle Stan: No, you can't! You gotta trust me!
Mabel Pines: Grunkle Stan,
[crying]
Mabel Pines: I don't even know, if you're my grunkle! I wanna believe you, but...
Grunkle Stan: Then listen to me. Remember this morning when I said I wanted to tell you guys something?
Computer: T-minus twenty seconds.
[Mabel prepares to push the button]
Grunkle Stan: I wanted to say that you're gonna hear some bad things about me, and some of them are true, but trust me. Everything I've worked for, everything I care about, it's all for this family!
Dipper Pines: Mabel, what if he's lying? This thing could destroy the universe! Listen to your head!
Grunkle Stan: Look into my eyes, Mabel! You really think I'm a bad guy?
Dipper Pines: He's lying! Shut it down NOW!
Grunkle Stan: Mabel, please!
Computer: Ten. Nine.
Mabel Pines: [looks at Stan] Grunkle Stan...
Computer: Six. Five.
Mabel Pines: [lifts hand] I trust you.