After 13 wonderful years we will be sending across the Rainbow Bridge.  His hind legs are failing him and it's all he can do to get from his pillow to outside.  He's had gradually decrease in his mobility, but the past month it has really accelerated.  He has been a wonderful companion and I know the Lilly (11) is really going to miss him as well as Lucy (3).  It breaks my heart to see him this way, so we need to do what responsible pet parents do.  We will always remember him with much love.