We have two cats. A five year old neutered male who never sprayed and a eight month old intact male who has never sprayed either. There has never been any problem with litter training and there is no indication of a territorial struggle other than the occasional play-fight. They've even started grooming one another. There is no obvious dominant cat as they both groom the other and there is never a clear "winner" of the play-fights. They eat out of separate bowls as well, so there is never any fighting over food.
Do ALL intact males spray? What are the chances that my cat never ends up spraying?
I understand that neutering a male gives them a better life and I'm not saying that I don't want to neuter my cat, I'm just curious to know what would happen if I didn't.