Parrots used by drug cartel

That reminds me of this big drug bust that was on the news a month ago. Instead of using parrots though, they some how tamed grizzly bears. They fed them, and the bears would always be on the perimeter of the area. So, when people got too close, they would see a grizzly, and know not to go any closer. News spread that the area had a lot of bears, so a lot of people stayed clear.