First option of the infra red camera is just for video confirmation of the ididot. The shot gun on a string trigger aimed at trash cans is an attention getting device.
You can't keep folks from doing stupid things but you can stop them from repeating thier mistakes.
Case in point is back in the 60's when the biker dudes who were picking on the geek in the VW bug.
They went over and picked up the back end of his bug with him sitting in it. He went on ahead and fired up the engine and grabbed reverse. Full throttle. It didn't take long and the bikers were requesting salvation even as the cops showed up.
The geek didn't stop them from picking up his car but he dang sure kept them from doing it again. I just picked up a 20 ga side by side double triggers and all. Now if I just had a barn or some of those neighbor things to play with. . .