As some of you might have heard, a fairly well known instructor shot (what was supposed to be) a failure drill into one of his AIs down in TX over the weekend. Fortunately the AI will live (Two in the abdomen, one in the bicep).
That this happened is a tragedy and (to me) it highlights a few key points to take away.
1 - Target ID - Always, always, always know what you're shooting at. If you are behind the gun, every round that leaves that muzzle is your responsibility and you can never call them back. You better be ready to own them.
2 - Vet your instructor - If you're paying someone to teach you a skill, ensure the man has experience that is relevant. Taking a class from someone with experience, or reading a book isn't going to cut it. There are too many very experienced folks out there teaching reality based techniques now to waste time and money on a class with someone teaching pure theory.
3 - Safety should never be ignored - I've been carrying a gun in unwelcoming places for a minute or two. One of the fastest ways to mark yourself as unprofessional is to disregard basic weapons safety. Gunfights are dangerous enough without having someone on your side who leaves his finger on the trigger or sweeps teammates with his muzzle. Being able to perform basic gun handling safely is the mark of a professional. No one is too cool for Murphy... he'll always bite you in the ass eventually if you let him.
Stay safe and keep training boys and girls.