Once an idiot always an idiot, anyone that does such a stupid act whether in a built up area or not, will more than likely do the same again. I would also hazaed a guess that not many American citizans own MK47s, and there is always that one person that holds a grudge against the person that fired the thing in the first place.
This is also getting away from the point of the thread and the question asked.
Regards ian2411