I have a 13 yr old dog who has recently started peeing in the house. She is house trained and knows this is wrong. Now I have not owner her very long. Only since September, but her previous owner said she has never had a problem. Also I understand she's old and can't hold it very long. But she does it when people are home. Verbal discipline has not worked and I feel she knows that its wrong cause she gets 'that look' when I see it. If anyone could help I would love some tips to train her again.