Great thread. Like Flags, I've not had much in the way of adventure when hunting bears. I've had a couple walk up to the stand and check me out. But that's about it.
Fishing, and hunting other game is another story. One time (we don't name streams in Michigan) but I was fishing a fairly well known one. I was working a hole in a bend with the bank tall behind me. When I heard a snuffing sound. I turned and saw a sow with three cubs right at head level and maybe five feet away. The sow was trying to catch my wind. Lucky I was smoking a cigar and that's what she got a snoot full of.
ATB