What destroyed some fencing?

More pest trouble, but this time something with muscle. As I mentioned in the last post, I think something has died under the shed, judging by the bluebottles and the smell. When we took over the plot there were three very substantial concrete fence posts which I used as a base for the shed. I levelled them and put damp-proof plastic on them and put the treated shed base across them. This keeps the wooden base off the ground to help keep the rot away. Once the shed is down you can't treat the bottom of the floor again without fully dismantling the shed, so keeping it off the ground helps a lot. This leaves a small gap between the shed base and the concrete posts next to each of the wooden rails. I covered this gap with some strong wire fencing, held in place with plastic strips screwed to the shed. Something destroyed this.

The stiff wire is bent and mangled. The plastic has been ripped off the screws. There is blood on some of the wire. Something was very keen to be into that space. It looks like it was ripped off from outside rather than pushed off from inside.

I had to use a hammer to straighten the wire, so whatever bent it was pretty strong. I suspect a fox or a dog was trying to get at whatever was under the shed.

I hammered wooden stakes into the ground, replaced the wire and screwed the stakes and more plastic bands across the wire to hold it in place. I hope that is enough.