My oldest dog is now so old he struggles to eat his evening treat. I sometimes can convince him to take a softer one, but sometimes, like tonight, he will refuse all offerings except the usual and it takes him about an hour to get through it. They are so tough that I may have to get out my sawzall and cut them in half for him so that he can finish it - he gets tired and holds on to the soggy thing and kind of whimpers at me, but he does not want to give it and he eventually does finish it.
I want him to be 5 again.