Thanks to Major Clanger for alerting me (via a story in the Times) to the concept of the Hitler Tantrum Mashup. Not something I'd encountered before. The rules are very simple: take the above scene from the excellent Downfall, and insert your own subtitles.
On the Times story linked above you can also get others including "Banned from World of Warcraft" and "Windows Vista problems". You can't (as I write) get this one.
And for the fun of it, here's the one where Hitler twigs someone is re-subtitling him.