Lol, its because that guy was shooting it in view of others, (Shooting it in his back yard from what I understand) Someone called the cops on him and he got his toy taken away because he wasn't thinking straight.
Don't shoot your guns in the public, or in the veiw of ANYBODY that doesnt understand what they are. Even then, keep them to private property or at the feild.
If you're not an idiot with your guns, you'll be fine. Its a pretty fucking simple concept.