Hmm. Thinking hard, I can't recall anything other than heresay about Bodyguards failing to fire due to junk around the hammer; that said, I carried a Model 40 back in the 70s-80s when I was working plain clothes in LA County. Two reasons for that choice: first was that it had the sweetest DA of any J fame I've ever owned; second reason was that I didn't want to push my luck in case the stories about Bodyguards were true.