Last year, one of the big Internet sensations was the slew of Hitler parodies.
The clips were from a scene in the 2004 film Downfall. Whether or not the clips are in good taste are not being debated here. They are in poor taste. They are also funny. Most of them, anyway.
Recently, on the Twitter, someone asked when there was going to be a Hitler parody where Hitler rants about the Hitler parodies.
Turns out it's been done. More than once. NSFW.
[Direct YouTube link]