My 16.2hh tank of an Irish draught did this everyday for about a month until we got a new energeriser ?? For a while I didn’t understand how he was doing it as he I didn’t think he’s athletic enough to jump it but equally the fence never looked like it had been touched! It wasn’t until so actually saw him in action, as he would normally do it over night. It became quite a fun game - guess which part of the yard Finn will be in, in the morning! Quite talented really climbing delicately through 4 strands of tape when you’re practically an elephant ?
A friend in France has this sort of fence. And she had to put straight bits of metal every 4 foot of wire to make the strands stiff as she had a warm blood who would do same. It stopped him in his tracks,