Here's a true story:Old Lee Thompson was a fishing guide on Duck Lake in Washington County, Maine. He had the camp next door to ours (in Maine a cabin in the woods is a "camp"). He made a good life, fishing in the summer and wintering with his daughter in Florida until he was killed in a car accident on his way south one year.
Anyway he told me the story of a bit of trouble he had when he got out a big steak to thaw. He left it on his kitchen counter and headed for bed. Now he had quite a nice camp, a regular three bedroom house which was unusual in those days. Our own camp was a one room log affair with a wood stove for heating and cooking and bunk beds built into one end.
Anyway, Lee's camp had a screened porch looking out at the lake. You could stand in the kitchen and watch the sun come up over the lake and know that all was right in the world.
Lee laid the steak out on the counter and went to bed. During the night he heard a noise and padded softly out to his porch. There at the door was a bear, sniffing around and wanting that steak. Lee stood for a minute and then crept closer to where the bear stood in the door way. The screen was torn and open. The bear could neither see him or smell him. Lee leaned in close and shouted "BOO!"
The bear, frightened, turned tail and ran. Lee straightened up and then was hit from behind and bowled over as the other bear, the one that was already in the kitchen, ran over him trying to get out! The only cassualty that night was the steak.