I should think if you are German, you would dislike him even MORE. Hontzymonster, it disgusts me to think you would say something like that.

If it were possible to kill someone with shame, I would bring him into the future and show him the shame that he worked upon the country that he said he loved.
I'd show him the divided Germany, and the poverty in East Germany, and the Berlin Wall.
I'd show him that he has gone down in history not as a leader or a brilliant conqueror, but as a criminally psychotic tryant with a Napoleon complex and an autoerotic problem.

I would then show him into a small room with no furniture but a single chair and a rope hanging from the ceiling.