We have a 15 yr plus old female dog, who is blind, deaf and has dementia. Lately she is also having more accidents. We have to sort of slide her out of the house to do her business. She doesn't want to go and isn't very co operative? She's got to be suffering without hearing or seeing, poor thing, yet she eats and stands on her feet and once we get her outside she still does her business out there unless we don't catch it in time? She gets lost in what seemed to be so familiar to her before, now she can't even find the door? I am reluctant to put her down just yet, husband is ready to do it now, she doesn't seem to have any quality of life left. Yet I kind of want to give her every chance at life that she does have left, yet I worry I am doing the opposite by keeping her around in this condition? How will I ever make this decision? Should I let her die at home? How long can a dog linger in this state?