..............................Toby was not neutered, he didnt mark,he didnt hump and he wasnt aggressive,he was a kind and gentle chihuahua who wasnt ill in his life and finally passed over 3 days before his 16th birthday due to enlarged heart and water on the lungs which he didnt get noticably til 6 months before he died.Jamoka said:well i know each dog is differant but moka's not neutered and he's not aggressive, he doesn't mark in the house. the ONLY issues i have with him is the humping. he goes on the hump rampages. that only happen once in a while but other than that my male is fine with have all his packages. he's not fixed b/c i plann on studding him.