As much as I loved my hybrid...a fence never stopped him. He could scale a 7 ft fence or dig under as deep as it took and squeeze out a hole that was only big enough for a rat terrier. He always came home..but it was pretty nerve wracking wondering if he was safe.
I had several dogs at the time. Although, typically, the alpha is a female it wasn’t true with him. He would take the “girls” over to a spot he wanted dug out and point his nose at that spot. They would dig like crazy.Lazy bum! Off he would go. One of the “girls” would usually follow. But she had been “on the streets” and would crawl back thru. She was a smart old girl...but he was pretty darn canny himself.
Mine never did bark. Barking is vulgar behavior to wolves. She would howl if she felt mistreated (nail clippings, baths) but she loved being brushed head to toe.
She could gnaw down a full beef femur in about half an hour. Her habit was to crush the bones into little bitty splinters and lick those up, and used her toes to hold the bone like we use our fingers.