As a courtesy, we surfers on the Outer Banks of North Carolina used to take those pansy-ass hammerheads off the fishing lines of the dudes that hooked them off the Frisco pier.

Of course, that was in the "old days" when hammerheads were twice as big, and waves all came out of the classic movie, "Endless Summer".

Bears?  Mere child's play... comparatively speaking, of course.  

Sharks, bears... no bother at all.  Just use a blue barrel.  Don't bother hanging it.  Just put it outside the other guy's tent with a pile of pots on it & you'll do just fine, if you're a light sleeper like me.  Worst thing that can happen is that it might get slimed over by those green army worms, like what happened to me about 8 years ago.

It's those deadly canoe flies/ankle-biters that give me the heebie-jeebies!  Greatest nemesis known to to canoe-campers anywhere!  Thank your lucky stars they are only interested in ankles, not food packs!  Six-inch teeth in quarter-inch bodies... now THAT is terrifying!

Jimbo   8-)