Hitler Hears Bad News – Don’t Shoot The Messenger

…as Halder recorded:

When he read a statement compiled from unimpeachable sources which showed that in 1942 Stalin would still be able to muster another one to 1-1/4 million men in the region north of Stalingrad and west of the Volga, and at least half a million more in the eastern Caucasus and the region to its north, and which proved moreover that the Russian output of first line tanks amounted to at least 1200 a month, Hitler flew with clenched fists and foam in the corners of his mouth at the one who was reading this statement, and forbade such idiotic nonsense.

Hitler’s Mistakes: New Insights into What Made Hitler Tick
Ronald Lewin