Seriously, what is everyone's problem here? Clearly the animals are not being taken care of properly if they are escaping from pens and breaking off chains. Finding better ways to IMPRISON them is not the answer. There is a lot more to successful containment for dogs than just having a physical barrier for them.
If your dog's are escaping, that shows there are problems that need to be addressed and no amount of wire, electric or other wise is going to change it.
I had a neighbor who had this problem, even with a fully electrified fence, his dogs were still getting out because their NEEDS outweighed their pain response.
I believe every owner should be responsible for keeping their dogs contained at all times. It seems that a lot of people don't realize how much is actually necessary to prevent breakouts.
and I'm not anthropomorphizing, dogs are naturally wanderers, confining them to a run/pen/kennel enough to the point that they are trying to break out shows they are not being given what is necessary.
If they aren't in prison, why would they need to break out?
Excuse me!! I worked really hard on my husk to get her to were she is today. So if you don't know how hard someone has worked with there fog don't say anything. Not all dogs are alike. Some are more stubborn then others. Ex specially when my husk all her family are sled dogs, from Alaska. So thank you very much, cuz I worked my butt off.