My mom's cat was diagnosed with diabetes almost a year ago. The only course of treatment has been diet change, as per the vet. We made a vet appointment for this afternoon with the intent of probably putting him down. I wanted to hear from someone on when to call it quits even though I realize that this is a subjective question. Goofus has had trouble walking for several months (he walks on his ankles instead of his paws now) and spends most of his time laying in the same spot on the floor since he can no longer jump. 2 days ago he started pooping around the house although he still manages to urinate in the litter box. He doesn't groom himself anymore. It is heartbreaking to watch him walk with his paws flopping around, out of control. I don't think he can feel his feet. I wanted to know if anyone had any suggestions on how to make this very difficult decision. My mom is elderly and finances are indeed an issue as well...Thanks in advance.