1931

Marty: Have you ever had someone really important in your life?
Emmett: I don't think so...
Marty: I mean... someone that you could risk your own life at any situation and you wouldn't mind if it could change the entire balance of the universe as we know it.
Emmett: Haha! I don't think it's possible to destroy our universe Harry, unless you're some sort of time traveller!
Marty: ... Yeah... That would be silly...

(yeah, I took Harry Callahan)