Okay, naive question at you more knowledgeable types: if boy cats just get a vasectomy what/how/why do they lose interest in pursueing females in heat? A major factor in my decision to neuter Cassy and Sassy was that they would be less easily enticed from home by fascinating female odors on the breeze. ???

Why would a vasectomy decrease the odds of cancer (small decrease, but...) in males?