Tyrone: It actually greatly concerned me back when I was a range safety officer and/or attended public ranges in the Puget Sound area, where I was born and raised.
Over the years I saw so many "idiotic" slumload type actions by range attendees that it diminished the pleasure/fun I wanted from my range visits.
For the last 23 years (since I retired and moved out of that area) I seldom see other shooters at the ranges I frequent (one public and two private ranges) so I am well protected from slumload-like loonies (idiots).
This incident should NOT have happened no matter where it occurred - thankfully no innocents were injured.
Hold into the wind
VarmintGuy