We went camping one time, and the raccoons were plaguing us. We double bagged all the food in Hefty Bags and hung it from the supporting rope that was tied to a tree, and all night, the raccoons were running across the top of the tent to kamikaze off the front at the food bag. They never got the food, but they kept waking us up and there were about fifty claw marks down the sides of the bag.
I think of that because we could never get anywhere near the raccoons. They would vanish at the first sight of a human being.