never seen one....? i see them almost daily....i've had to train my dog in marshall arts to deal with this threat. She can brama bull (be spun around or spin 360's) she can do barrel rolls endlessly and be back on her feet in a millisecond teeth barred and ready to kill or be killed.
she has to be as tough as nails to deal with these dog-bears. they are quite similar to wolverines in nature,,,very tenacious and deadly!!!
here's a picture....check out the size of their feet and claws
