Stonepecker has the right idea. All my life I've been told not to do anything outdoors by yourself. Always take a buddy hunting,camping, and swimming. Like mentioned earlier you don't have to outrun the predator just your buddy. If for some reason you don't think you can that's when a small caliber pistol comes in handy. Never use a high caliber because you don't want the friend to just drop dead other wise the motion of you running might keep the predators focus on you.