We had one do this.... once. He stretched out and ever so gently rolled backwards, out our 3rd story window.
We knew he was dead down below.... but when we got there, he was looking around wondering what happened. Of course he clung to the middle of the floor for a while, and when he finally got to, then jumped off the sofa, he collapsed in a heap. The vet told us he was faking it.
ROTFLMAO!!!
That puts a LOL picture in one’s mind and then the vet saying the cats faking it brings a belly laugh...GG