S10E5: Back to the Pilot
Brian, I don't... (SIGHS) I... It's... I don't... I don't know anymore. I...
You know what? I guess not. All right?
Okay, listen up. Everybody, get back in your individual time machines very carefully.
Nobody touch anything. No Harry Potter novels.
Don't step on a bug. Don't give earlier yous investment advice.
Just go back to where you came from, and stay there!