My boy marked as soon as I brought him home at about 14 weeks. He would lift his leg on anything upright. A basket I had in the house. Everytime I saw him do it I said no. So I have not seem him doing it lately in the house but I do see him doing it outside on the fence, any post ect. So yes...I think they can start this very early. I plan on having him neutred as soon as he is big enough. |