I was at my friend's 17th birthday, it was a camping trip. We were going to sleep (outside, no tent), when I was drifting off then out of no where we all heard a terrible screaming from the woods (not human), we thought it was a mountain lion or bob cat. So we checked it out with a BB gun, nothing we could see so we started the fire back up, and we went back to sleep. I sleep with a knife the rest of the night.