
I am so sorry you have lost your old friend, TamaraLynne, but I think you need to reconsider getting another dog, particularly a herding breed, if you are not able to be with it for much of the day. Unless, of course, you mean someone else is there and he was just pining for you to come home.
I think your old boy probably tolerated it as he was ready for a sedentary life but a puppy would find it very lonely and frustrating and could become very stressed and distructive.