That is not a true charge, that's a faint and that's why the bear spray seemed to work, that bear had no intention of actually attacking, she was just trying to make sure that the guy in the video wasn't going to go after her cub. A real charge is far more aggressive and you typically wont see it coming because the bear is actually stalking you so it will hold to cover until it's ready to attack. I live in SW Montana and more often than not, when you read about bear attacks around here, real attacks, it's more common to hear about how the bear just ran right through the spray without any effect. What's even more of a problem is that when people buy a can of spray they never practice with it and it's not unusual to hear that some guy TRIED to deploy his spray and he never did because he didn't know hot to disengage the safety, or he didn't know how to use the spray.