I have a 6ft wood privacy fence. I thought that would be plenty high for my dogs. Boy, was I wrong. Bula can jump over this fence. I don't know how she does it, but she does. How can I keep her from jumping over the fence? It used to take her a while to get over it, but now she's over the top within five minutes...I put her and Dixie out in the yard this morning, locked the gate, then went inside and took a shower. When I got out, Bula was sitting on my back porch. I stopped her from digging out, so now she jumps out. I hate having to tie her up when I leave, but right now, I don't have much choice..