I certainly didn’t want to be the one to tell him.      When a friend came home with his adorable gray fur ball of fun seven years ago, I did all the things a fellow dog lover does to welcome a new pet lover into our tribe.      Well, almost all the things.      Deliver a basket full of puppy toys: check.      Coo, snuggle, and make a big deal over that pink puppy belly: check.      Offer up my