The Czech people were already one step ahead of this manual. According to Madeleine Albright's book Prague Winter, the Czech factory workers during the WWII occupation by Nazi Germany worked hard at personal peril to ensure that the goods they made for the German war effort were not up to their usually excellent standards of workmanship (excerpt: Or the message found in the casing of an unexploded bomb from Czech factory workers:“Don’t be afraid,” it said, “The bombs we make will never explode.” [1]). Best book I have read in a while albeit a very sad read.
I can't help but find myself wondering - did they write that in every bomb? Wouldn't that be incredibly risky? Also, how did they know that that particular bomb was made by Czech factory workers (was the message in Czech?) And why did they think to cut the case open? As far as I'm aware that was not normal bomb disposal procedure.
I had a Google and found a few more facts:
* This anecdote comes from Dagmar Simova, Albright's first cousin, who was 12
* The bomb landed in London, during the Blitz
* It is implied this particular bomb landed in their neighborhood
What are the odds, that this very singular message throwing the Czechs in a good light, should be discovered through an unusual procedure on a perfectly normal bomb (among thousands) that happened to land in the neighborhood of non other than the cousin of future-famous Czech-American Madeline Albright?
[1] http://www.aspeninstitute.cz/en/article/0-2012-like-a-czech-...