I bet the guy was cheating on his wife and made up this story, whacked his arm in the car door a few times, and went home bloody to cover his tracks. Well played sir, well played.
wait a sec.....moutain lion jumps on your back, gnaws your arm, and bear chases it away. You then go panning for gold before going home, and still refuse medical treatment? I call bullshit. Guy was out boozing with him buddies or some shit. moutain lion my ass.