From one of our long time customers,

"The Value of a Bear Canister

On a backpack trip in Yosemite National Park, I stopped for lunch at the Little Yosemite Valley Campground. While I was eating, a small bear brushed by me and went to the bear canister. The bear determined that the canister was a waste of time and went to my pack. I then scared away the bear with noise. The moral of the story is that it pays to keep all of your food and scented items in a LOCKED bear canister all of the time, including daytime."