This comes from Cracked (as many of our things do), where I learned that evidently Greta Garbo was Hitler's favorite actress, and Hitler kept asking Garbo to visit him, and if the war hadn't started when it did she was going to go there and shoot Hitler because she was the only person they wouldn't search.
So let's say WW2 is delayed. What if Greta Garbo assassinated Ol' Adolf?