Thank you for the replies. Max is 1 1/2 now so I think it may be more of a "
man of the house" thing. LOL I didn't really expect him to do it though because all the pups are girls? I guess he will probably stop after Katie puts him in his place
I realized yesterday that he had marked the xpen too so I think that is definitely the problem. I have never had any problems with him being a
humper but he has always been a
marker.