Spaying/neutering will cut down the risk of pyometria, prostate problems, etc. Dogs can get very aggressive if they're not fixed.

As far as you coming on here asking for advice, only to get defensive when you don't like what you hear...SHAME ON YOU!!!

I'm also tired of rescuing pets after they are no longer any use to their irresponsible owners. You sound like one of them. Nuff said.