Two facts I had never heard about this guy...
1.) Later in his career, he got a strain of syphilis that caused the walls of the aorta above his evil heart to become weak, and he was in danger of having it rupture in the last year of his life.
It makes you wonder....if he hadn't blown his brains out, would the syphilis have gotten him instead? Sounds like God had a backup plan if the suicide didn't work.
I only found this out because I was tuning into History channel randomly some years ago, and I guess it was during that time period where they talked about nothing but Hitler (which I found annoying, because there's more to history than just some real-life, nutjob villain out of Germany).
2.) He was an animal rights activist......
Cue the shocked, open mouths and hysterical, disbelieving laughter.
Although that does explain that weird factoid they mentioned in the Mythbusters episode about goldfish. Apparently Hitler thought it was cruel to put goldfish in bowls because there were no corners to hide them in, and he actually passed a law prohibiting the use of bowls for housing goldfish.
Talk about weird history.