Years ago we tent camped in the forest on Mt. Rainer. I noticed that the garbage cans were underground and they collected the garbage just before dark. The next morning all the lids were off the garbage cans and the black plastic bags were pulled out.
I have to admit that a brainless youth, I drove to Yosemite, arriving long after dark. I slept on the open ground next to my car. At daylight, I discovered I was sleeping in the park dump. I lived to become smarter, and a grandmother.