It’s easy to kill a bear. David in the Bible did it. You just gotta look em in the eyes. Mumble some mumbojumbo, pound the sand with your fist. This will send a spine chilling vibe to the bear. And he will run away.
If it’s a female bear with cubs. Hold one of the cubs hostage. Use your fingers to mimic a gun and point it at the cubs head. The bear will retreat and beg for you to let her baby go. It’s up to you now to either let it go or kill it to make a point to the bear and other animal onlookers.