Our Loki marked in the house when we first got him and he would mark in other people's houses if we were visiting and he marked every 2 feet during a walk. It was annoying.
Princess Gemini did not mark. Princess' don't do that.
Lee has started to mark. It is not in the house thankfully, but she has started to on our walks. She will be going along and if there is something extra smelly shewill pee on it. It is funny because when she is marking she slightly lifts her left paw off the ground and always looks like she may fall over.
Does your dog mark?