I hadn't ever heard a fox at night until about a month ago, didn't know what it was until a friend told me....very interesting. Two weeks ago I decided to test my opsak. I'd had tuna for lunch and left the foil pouch closed up in the opsak along with my breakfast bar for the next morning. Hung it in my food bag. In the wee hours of the next morning I was awakened by an incredible racket, and all I could think of was, "yeah, somethings fighting over my food bag, and now I'm minus my breakfast"....it was a short hike out, so I didn't have much to lose. Turned out that wasn't the case, it wasn't disturbed...but something, likely raccoons were having a dispute over something.
@ Ken, Thanks for the warm thoughts... you are, of course right :)