Hi.I have got a nine month old dog de bordeaux she is house trained, but just recently she has started urinating in the house.she will not wake me up in the middle of the night she will just do it in the hall way.in the day she will sit by the door and if I'm not there quick enough she will just do it in the front room.she is a wonderful dog but this is driving me crazy,could someone please explain why she is doing this and what I can do stop her please/:(