As [the Officer] struggled with Villalon, [the homeowner] drew a handgun and fired in their direction, striking the officer on his right arm, according to police.
Homeowner shoots McAllen officer who responded to burglary
This is the Negative Outcome I categorize as ‘Downrange Failure,’ i.e., hit someone downrange who wasn’t the criminal. It’s the smallest category of Negative Outcomes but the consequences tend to be high.
Most people have an exaggerated idea of their marksmanship ability. That’s why it’s a good idea to have a standard benchmark of your shooting ability ahead of time. If your targets look like this (or worse), shooting when an innocent is downrange is probably not advisable.
Unfortunately, as my colleague Tamara Keel, who works at an indoor range, has mentioned, the above target probably represents the upper quartile of typical shooters’ ability. At least most of those hits are on the target, which is beyond many people’s capability. Sorry, but that’s just the way it is, folks. If you don’t practice effectively, you’re setting yourself up for a Serious Mistake, as this incident’s homeowner found out.
[The homeowner] was arraigned on the charge of aggravated assault on a public servant, a first-degree felony which has a maximum punishment of life in prison.
Concealed Carry Skills and Drills and Indoor Range Practice Sessions both have a progression of benchmarks to help you evaluate your skill level. The links to the downloadable eBooks are:
Concealed Carry Skills and Drills
Indoor Range Practice Sessions
Less than the cost of box of ammo for either or even both put together. It’s a very inexpensive investment.
Hat tip to the Armed Citizens — Fight Back group on Facebook for the story lead.
tacticalprofessor 
If the homeowner’s shot was fired with genuinely good intent, the aggravated assault charge is utter bullshit, and that charge requires malicious intent. That said, a criminally negligence charge could be filed in its place, which does not require malicious intent, and the punishment could be substantially the same.
Another instance of “a world of hurt,” because a bullet cannot be recalled to the barrel! Think of the poor officer’s take on this!
This is a “real world” slap-in-the-face, the sort of valuable information you regularly provide here, and is what we need to challenge our students with -backed up by a sound training program they can follow after the course. As a ccw instructor, I offered a free classroom refresher with discussion/plus update session at the range, a couple of months later (even tried offering several dates) and attendance was modest. I was thanked for the opportunity by many who declined, but they had fulfilled the legal requirements. So the trick is to load this sort of information up-front, as part of the pre-course prep. Your “lessons” will be required pre-course tested reading.
Thank you, once again, for providing a sane voice, an antidote to so much web nonsense focussing on how many reloads to carry, and why NYPD should picked Federal HSTs instead of Speer Gold Dot 9 mm loads.