A female is calmer, happier and more content if she has at least one litter before being spayed. The owner expects that breeding will result in a behavior change and this expectation leads to the assumption that the behavior has improved. Good care, proper nutrition and lots of love are the components that keep a pet, female or male, happy and content. Keep dogs in the yard and male cats in the house and everything will be all right. Cats can slip out the door or window.
Dogs can climb fences and take advantage of unsecured gates.
As male dogs roam in search of females in heat, they are vulnerable to being hit by a car or attacked by other dogs. If you allow an intact male cat outside, it often has violent fights with other males. Wounds from these fights can be serious and require veterinary treatment. There are also health benefits to consider. Neutering a male dog eliminates the risk for testicular cancer as well as other testicular diseases.