Ruby my 9yr.? old has started to poop & pee while I am at work. There was an old dog that lived in my mobile prior to me moving in here Mar. I thought that it was just marking. Ruby has been fine up to a couple of months ago. I put it down to me being at work all evening so, I was trying to give her the benefit of the doubt. It was once in awhile and now it's every night when I get home, she has either peed on the carpet by my bed or pooped in the addition. I am just beside myself in wondering what to do. Shall I just live with it and put paper down consistently in one place? I could feed her in the morning only and limit the water while I am gone. I read on line that sometimes senior dogs who have been spayed and something to do with their hormone leve. Any suggestions?