Well these dogs were pretty smart. They soon figured out that if they charged the perimeter at top speed, they would not be shocked for very long and then they would be out.
Dad thought it was the collars that were the problem. He spent a whole day disassembling, cleaning and testing them. He then put them on the dogs and when I showed up he asked me to call them from the outside of the perimeter.
I called, cajoled and wheedled, but they wouldn't come any closer to the wire than 5 feet. The problem was solved!
Or so we thought. I went back outside 15 minutes later and they were gone again.
We had been lied to, and outsmarted by a pair of mutts. This was not humanity's finest hour.
LOL. Even 'dumb' dogs are pretty smart! I am constantly amazed at what my dog can do -- and his trainer would say that he is not the smartest dog in the world. I would say that he is plenty smart -- but not necessarily obedient.