I know when we visited Old Forge, NY campground in the Adirondacks, they chase away black bears with paintball guns. Campers routinely feed the bears, so they have really lost their fear of people and are rather comfortable in the campground. When spotted, camp employees come on golf carts with paintball guns. I guess they sting the bears, but are harmless and the paint is also harmless.
Gees! I'd be tempted to wait on the rooftop with a shotgun!
Gees! I'd be tempted to wait on the rooftop with a shotgun!