I found this conversation very interesting in the BREEDER FORUM regarding how you need to handle unaltered pets in your home and feel that anyone considering not spaying or neutering their family pets take a look at it. This is real life with intact dogs and not abstract studies and to me there seems to be a lot of work involved with keeping intact animals and it is not for the casual pet owner. After reading this exchange between a couple of members it seems it might even be dangerous to leave your home without crating and rotating. Personally, all of mine for the most part live very peacefully together and I never have to worry about things like hormones setting off dog fight.
http://www.yorkietalk.com/forums/bre...ml#post4457717