Following on from Felix' idea, if I had a time machine to 1933 I would take back a dvd player, a big tv, a 5.1 system, some mushrooms and a copy of inland empire. I'd make him a mushroom brew and tell him it was tea, then make him sit and watch Inland Empire on repeat, thus turning him into a vegetable by the end of the trip.
Damn, I wonder how the world would have turned out if I actually did that?