We have a14 Yr old rescue dog. Came to us age 6 as an ex breeder. She has always had behaviour problems but on the whole has managed in the house with the other dogs with minimal problems. She has the sweetest nature. Over the last year she has lost most of her sight and hearing, developed incontinence issues, lost most of her toilet house training and started howling at fresh air. I'm beginning to dread coming home because I don't know what Mess i'll find, the house smells and feels unclean , I feel constantly bad as whilst our other dogs are in with us all evening she has to stay out in the kitchen because she pee's everywhere. Part of me thinks now it would be kinder to put her to sleep, but in her self she seems happy, wags her tail, eats with gusto and still Enjoys a short wander up the fields. Have spoken to vet, but in reality her history and age are the main reason for most her problems and are likely to now not change... This really is the hardest part of owning a dog.