Great story Beau.
The un-exploding bombs would be quite normal, many of them were made under forced labour by victims of the Rich and many would take a great risk by doctoring the bombs in some way so that they were duds. It was also quite common for bombs not to explode on impact, the technology being quite crude in comparison to today. The real heroes were the men of the UXB in WWII who risked life to defuse them. Even today these bombs are still being found in England