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					Originally Posted by soccbydo  Was going to neuter the Yorkie only | 
 
  Are you breeding the other dog?  If not, there is really no reason to not neuter.  There are lots of benefits of neutering:  Cancer, Marking, Humping, Aggression towards other male dogs. 
IMO - it just doesn't make sense to have pet that are not neutered/spayed - unless you are a breeder.