This is why there are 4 Rules, not 1. If there was only 1 Rule, it would read like:
The reason that there are Four Rules is because people are human. There are a million insurance commercials illustrating the fact. The Four Rules are designed so that even if people are being human and thus fallible, then no one else is injured by their actions.
- Don't fuck up and shoot yourself or someone/thing else by accident, m'kay.
While I do think that this case amply shows that a badge does not magically grant competence in firearms handling, there are plenty of experienced firearms folks out there who have had something similar happen. Maybe the difference is that we're willing to admit it, learn from it, and acknowledge our human-ness, whereas a growing portion of the folks with badges will not, and do not, do react similarly--they either try to cover it up or, as many anti-gunners do, blame the inanimate object for their mistake.