Oh dear. Kitties and collars.
This is the third season for me and no ground based predator deaths, knock on wood. I love lots of things about the fencing, mostly being able to change the shape of the yard so easily, and that it seems to work so well. I live among many wild animals.
No deaths due to the fence itself, but when I try to go over it, it does have a tendency to reach up and grab my foot, flinging me to the ground.
My kid's large dog was here this summer, and he managed to get himself caught up in it THREE TIMES, trying to get into the yard. Not a chicken chaser, we were all there and he wanted to join us. I didn't have it on for two of them, mistake for training him, but there were toddlers wandering around so definitely didn't want them to encounter it live. The second time I think it was on, but he didn't seem to notice, maybe at that point it wasn't all connected properly. The third time no one was even out there, maybe he was thinking that it worked so well the first two times he should try it again. I found him with his head jammed through one square, a foot through another, and he was chewing a big hole through a spot somewhere in between.
He had visited earlier this summer and he definitely connected with it and did not try this, so it was most likely about him knowing it was off.
A friend who had electric fencing for her goats said she had one young one that figured out that the clicking sound meant on, and would time his breakthroughs for in between the clicks.