[Some people wrote in to About.com Cats to say they object to spaying/neutering on religious grounds!]

Carlie:
Having your animals fixed is morally wrong. Playing God is not our place. If you really love your pets, say NAY to Spay!

C. Blumpkein:
In response to June's comment, "Could someone please tell me which religious text or religious leader explicitly commands that we do not spay & neuter our pets? Seriously. I have never heard of this before."

Does "Thou Shall Not Kill" ring a bell?

By fixing animals and altering God’s divine plan, we are 1) Playing God and 2) Killing potential life.

It's very clear to most.