So that is where those little bells and pepper smell come from and here I thought the bears were eating jerky, not jerks.

I worked for the US Dept of Fish and Game for a couple of summers before being drafted in the 60s. Spent a lot of time in the Sierras from N. CAL up into Canada. Never got into a situation with a bear that wasn't a result of my own stupidity. Did learn to assume that the creatures will probably avoid you during the day but might investigate during the dark. As I was a rider (horse), I learned to sleep very lightly but as I said, never had a problem. If I were to find myself camping in the wilderness again, I would certainly invest in a can (or two) of bear spray.