I volunteer part-time at our local kill/animal control facility, I have always had multiple dogs for more than 30 years, and have been formally training dogs for over 10 years. I agree that spay/neuter has nothing to do with nature and everything to do with nurture as far as their behavior is concerned. However, responsibility is the issue. If you do not spay your female dog and it gets loose whether with another one of your intact males or the neighbor's intact male that is irresponsbile on the part of the owner(s). If you have a male dog that gets loose and gets with another one of your intact females or the neighbor's intact female it is still irresponsible. Most, and I say most, people who have a pregnant dog with unwanted puppies will not abort those puppies because it is kind of expensive and kind of dangerous and unless you are planning on keeping every puppy in that litter why would you want the puppies to be born? Have you ever been to an animal control facility? There are plenty of cute, little, cuddly puppies who are waiting for someone to take them home, why would you want a whole litter of them when there are so many out there already? Everytime I walk into that facility I leave wanting to cry (and sometimes I do) because I know which ones will be put to sleep that week and which ones will be adopted only to be returned because "it was cute at the time". People look at pets as physical property that can be pushed to the wayside if it does not suit them at the time (yes, I have proof, all the cute little faces on petfinder will show you the proof too). We are all dedicated "animal people" on this site and generally have the same opinions about wanting to take care of those that we have been placed in charge of whether it be chickens, ducks, dogs, etc. I may be showing my liberal side here but I am gonna take a chance, if I had a daughter and she told me she was having sex and wanted birth control I would make sure she got it because an unwanted pregnancy is just that. JMO
