Wow, that strikes me as really unjust and backward.

So if a policeman is willfully negligent and doesn’t keep up his target practice, his own lack of skill could result in someone else being charged with manslaughter. I disagree: If anyone is charged, it should be him—though I do recognize the court would rightly not hold him responsible if a reasonably competent person couldn’t have been expected to do better.

If it worked that way, perhaps people would think twice more often before discharging a firearm - and fewer people would be harmed.