its not the chain, cable, whatever, its how you train your dog in the first place.. that "run" is fence parts for me, Tye would go under it... he is not viscous unless you pose a threat, or are a cat.... i dont have kids, and he wasnt trained to be around kids, so he stays away....

the older cats we have, actually sleep with him outside, its the strays, and he KNOWS the strays...

hes good, and perfectly taken care of, you can ask his big a$$ that and he will tell you the same