A serious collector of WWII memorabilia recently told me hew has heard the stories change as the age of those vets got older. In the late 40's & early 50's, guys would brag about how they acquired a trophy in explicit, gory detail. As guys got older, the bring-backs all seem to have been acquired laying in a field or won in card game.
Can't say I can blame a guy -- who wants to remember unpleasant stuff like that in your old age.