Bears are teaching their young that humans = available food is around. They call these bears " garbage bears". They treat into garbage cans, ave often chew on any containers they can find. A bear chewed on my chainsaws 2 stroke fuel oil can, causing oil to leak out. They've destroyed boxes of stuff with no food inside, they make a huge mess. The moment they smell coming food, they make note and wait for time of no activity, then raid. I've cooked outside in the forest where I live, go inside after eating, come back out ave seen bears running away. It's not usual for you to see them, they hide petty good. But they get accustomed to people not being out at night like I am. They're confused by me. Especially if you've got night vision, and chase them away, they will keep stopping and turning to look at you, it's a weird feeling. Wolves do that too. But yes, bears around camp sites and rural homes often go for the easy food, garbage. Then teach their young. It's no Bueno.