A friend of ours used to live on the outskirts of a small Canadian town. Quite often she would leave for work with her door unlocked, because she more or less knew everybody and knew that it was a safe and crime-free place. She didn't have to worry. One day, though, she returned to find her place completely trashed. Her front door had been opened, everything torn apart, her fridge ripped open and everything eaten, and a big old bear poo in the middle of her living room.
The moral of the story? Bears are just like humans. They know how to turn a door handle, and they sure as hell know a ripe opportunity when they see one. Sure, out in the wild, they'll hunt that salmon with all of their keen senses and whip-sharp reflexes. But if a salmon just jumps out and lands straight in their mouth? Well, just like us they're not going to say no to a free lunch.