Many, many years ago as a young boyscout, our troop went on a back pack trip in Yosemite. First night we slept in a campground in the valley in sleeping bags on the ground. In the middle of the night, I woke up, peaked out of my sleeping bag and saw a bear sniffing the face of my dad sleeping about 10 feet from me. I froze and seconds later the bear just wandered off into the woods. Scared me to death! My dad couldn't believe it when I woke him and told the story. None of us got much sleep the rest of the night!