I don't know about grizz, but around here I have seen the Black bears help themselves to food left outside in the coolers, but not inside a camper. If you are camping in a RV park, they usually go for the trash cans if starving, but mostly stay away from all the people and goings ons. Make a lot of noise and they usually move on pretty quickly. Beleive me, there's more bears in town than there are in the mountains....so it seems.
This one was in the back yard this week helping himself to the bird feeder, he moved on as soon as I tapped on the window.
