You do have a good exception we had a male siberian with a heart murmur. There was NO WAY in hell I was going to let them put him under. He lived ten long lovely years. He was the ONLY pet that was the exception.
Almost all of my animals are fixed. I have one female dog who isn't because she has a breathing condition that makes anesthesia especially dangerous. All of my cats and my male dog are fixed.
I rock. Lol