You know what we love? Removing the reproductive organs of animals for their own good. Which is why we love World Spay Day on January 23! It might sound harsh, but the truth is, failing to spay and neuter dogs and cats is responsible for millions of unwanted animals living on the streets without homes or food or being killed in shelters all over the world. So while it might make you twinge to think of a day celebrating animal sterilization, the truth is, the pain of putting all those animals down is far harsher.