Hardy Houdini

Hardy has taken to escaping from the garden. It is most annoying as he has been doing this even when I am out gardening or doing the hen and duck houses out. First I know about it, I see Hardy walking along the wrong side of the fence. He is on a public foot path BUT...
This is not good as some day he is going to get out on to the road and get knocked down. He occasionally lures Tess out with him, but after the Farmer's Wife incident where Tess ended up chained in the farmer's yard and Hardy e...