Ok, so here's the situation... the dog is an 87 pound australian shepherd mix. The other night I was heading to my second mom's house (Nancy) and as I was pulling up to turn in the driveway, I saw a stray dog run accross the street and then Dante (the aussie mix) run around the house to the gate... HOW DID HE GET OUT?!? Nancy has never had ANY dog jump the fence, it's a 5' chain link fence! There are 3 gates, 2 of which are locked at all times and one of which is unlocked but closed, as it was when I arrived that night. There are no holes anywhere, I walked the entire parimeter to be sure. There were no people around that I could see, either. Nancy had ran out to the deck to see what was going on, cause she heard them fighting- he's done that through the fence before, but she was shocked and scared when she saw him on the other side of the fence! Thank GOD he didn't follow that stray! Here's a diagram of the yard. Any ideas? COULD he have jumped it?! We're stumped! Poor Nancy has even lost sleep over it thinking someone had jumped the fence and tried to steal him! Please help!