I think for cost reasons alone calcium chloride neuter would appeal to some of our residents who are hesitant to bring the cats in because of cost factor but would be more willing to do so on cats no one owns if a less expensive option were available. I do believe that in our area we have an equal number of people who bring animals to our S/N clinic for nuisance reasons. The cat fights, yowling/howling, destruction of property from marking, escaping dogs (and cats), which most attribute to the males… So I do not think it is only a female problem. We see a lot of male aggression that is more manageable after neuter and can often be eliminated if done before puberty.