I've been a bear enthusiast since I was a little kid, so interacting with bears is my addiction, and I moved here to feed that addiction. Being on the ground face to face with a big polar bear, or any bear for that matter, a few feet distant is pretty cool. There's nothing else like it . . . although African buffalo in the long grass comes close. There is no polar bear season in Churchill so you can only kill a bear in self defense, or in the defense of others. I've been accused by some on this board for behaving in an unethical manner by putting "endangered" animals at risk, simply to feed my ego. According to these high thinkers, because I get too close, I'd have to kill the bear if things went south, so they wanted me charged with harassment of wildlife, despite the fact the professional photographers (and their armed escorts) who publish all the cutesy bear pictures get as close as I do. As a result I don't talk about it much online anymore, but I continue to do it. In more than 20 years of close contact with them, I've yet to kill a polar bear in self defense, although I've come close on a number of occasions, those specific situations have been the result of the actions of other people, not from any situation I created.
The exception to that was a large male I had a rodeo with shortly after moving here. He was in a bad mood (I had woken him up) and I hadn't yet gained sufficient experience to know how to act when one inadvertently invades their personal space. Their reaction is often to close the distance even more, and your natural reaction is to try to get out of the way. More often than not, aggressively and quickly moving towards the bear puts him in a fight or flight state of mind and he'll choose to back off until he's had time to figure things out. Once your distance to the bear has increased, you can safely move out of the area. Another instance was a cabin robber I was laying for, but a pal of mine killed him before I could.
These experiences have allowed me to gain a fair bit of knowledge about these guys, and the learning continues. Over the years I have seen bears killed. Some by being over-dosed when when darted. I've seen bears drown when they were darted and got into either the river or a pond. I have seen male bears eat cubs when the mother was caught in a culvert trap and couldn't protect them. I've seen bears killed because they were getting into someone's garbage, and one was shot when it chased a dog into the house. I've seen bears killed for killing dogs, and I've seen bears killed when they became habituated to breaking into cabins and being rewarded. I've even hear about a bear being killed when an inexperienced helicopter pilot accidentally slam dunked one into the ground when he was slinging it.
I don't have a problem with hunting polar bears, but we can't do it here unless the rules change, and that's not going to happen with today's attitudes, despite the fact that hunting was the original form of eco-tourism and is not harmful to the species when conducted responsibly.