I've tried it all, they just stare at us. I can send you videos, it's intimidating. They truly no longer fear us. For context-we live behind a plaza that has multiple dumpsters. The bears will eat out of the dumpsters as cars, trucks, rigs drive by. Also, we are convinced the bears we see are the cubs from previous years. They know the garbage route & follow it. Every Tues/Wednesday we have bears. Again, no disrespect meant, the bears in our neighborhood do not fear us. If I'm hiking, yes airhorn, whistle, pepper spray are effective, but at home, no. The only thing that works thus far is my dog barking, but even then the bear does not run off. Not being argumentative or disrespectful. Because I've experienced this repeatedly, I am in full support of a hunting season for bear.