Hah, then I shall have to build an insanely complex looking time machine with little whirly bits and old typewriter keys, and spinning old-style dials, which somehow still doesn't use any electricity, and go back in time to abduct the old guy with the Deloreon and hide him in a warehouse in the middle of nowhere with a complex structure that fills a big plastic room with water while a camera records his reactions.
Foiled by a time that apparently is concious and works to repair itself, I'll then go forwards thousands of years to rebuild the human race with a group of peaceful savages once the current civilisation is destroyed by parts of the moon falling.