As long as the kid was shooting the gun in an area that is lawful to do so and had LOS to the quad then I really dont see the problem here. not much different than firing the gun from your hand in my mind.
freakin people today are crazy and not just over drones. I imagine being only 17 hes probably never been confronted with a violent adult before. He probably wasn't sure how to react and all he was concerned about was protecting his expensive hobby stuff. I remember when I got my jaw rocked when...