In April this year, actress Emma Thompson joined a group of anti-fracking protesters in England to hold a demonstration in a farmer's field. A court injunction barred them from doing so, but that didn't stop them.
Furious at being prevented from working his land by the illegal demonstration, the farmer came up with a novel method of retaliation.
I wonder if Charlotte police could use that idea for riot control? It might be a bit odiferous, but it might also disperse a mob quicker than almost anything else! I'm sure there are local farmers who'd be delighted to assist, and those arrested for rioting could help with the cleanup . . .