He kept jumping the fence. We got new nieghbors and he wanted to help them move in, lick their faces and generally get to know them.....Well he is big. He is a German/Australian shepard. To keep him from jumping the fence we chained him up. OOO I hated it. We did this for two weeks letting him off occasionally but the minute he jumped the fence back went on the chain. I think he figured it out. He has been unchained for 24 hours and has not left the yard yet. Momma is proud of her big boy!