Male chihuahuas have "marking" built into Blackcore Edge Max their brain, and you will now not exchange them. basically, they are able to pee on call for. you may train your male to visit a particular spot whilst he desires to mark. One girl had a house-certain male, and succeeded in paper schooling him through laying plastic down, then paper, then put a full bottle on top that changed into protected in dog urine. She then worked with her male dog to offer him reward when he urinated at the bottle.