Also, when you put your stuff in the bear locker, you need to remember, it's only as safe as whoever closed it last..... lesson learned.
Very true. A man in the backcountry told me they were sleeping in Yosemite Valley the night before starting the JMT. He stuck his Bear Vault canister inside the bear box but had not screwed the lid all the way on since he didn't need to. He woke up in the middle of the night to find that someone had left the door open on the bear box and a bear was munching down on all his food in his canister.
When it comes to Marmots, Squirrels, Pika and yes the lovely Mice I always tell people that you don't have to worry about bears, you have to worry about those little guys!