When my toy poodle, Pumpkin, got older (he died at 17) he lost control of his bladder first rather than his bowels. It was almost the opposite of your problem. He couldn't get through the night without peeing and often I was awakened to the sound of him peeing by my bed at around 4:00 a.m. A delicate tummy, due to age may very well be the problem with Rocky and maybe, like your vet suggested, a change in food might help here. At least that's a place to start. As far as crate training goes, it is never too late to begin. My ex-daughter-in-law had a Peke that was about 4 years old and still was having accidents when she was gone from the house. I gave her a crate that I had used for one of my dogs and *Presto* he was holding it! Rocky may have some separation anxiety issues and I am really not familiar with how to help him with that, but there are lots of Pet Talkers who have dealt with this. Maybe they will chime in here.