Years ago I was on the Mount Whitney Trail, descending to Trail Camp. A Japanese hiker had been in front of me, so he reached his tent at Trail Camp just before I got there. He had made a big mistake when he had left his tent earlier that day. He had left his food unprotected in the tent. While he was gone, some wily marmot had chewed a hole in one side, then ate part of the food, then crapped all over the floor, and then left. The Japanese hiker was really mad. I couldn't translate all of the words, but I got the meaning.
Marmots almost never pass up a free meal.