I agree with jack on this one every hound i have had who would fight his chain seamed to have above average intelligence. Pen climbers aswell ones who would scale a 10x10 llke a rock wall all of them turned out to be very smart both traits a pain but i will never cull one for it. I have a Gyp off a Skull dog who would dig holes so big they had to use a backhoe to fill them in now that was a sight to see, she is a easy keeper aswell as her offspring i just don't see culling a hound for these pet peeves. jMO