Why do dogs do anything they do?? Lol they eat poop, they sit out in the rain trembling when there is a perfectly good garage to go sit in. I say this with all the love in the world because I have two of them, but dogs are dumb. You just have to correct things you see them do that you don't want them to do, and pick your battles because otherwise you will be scolding them nearly all the time. I would say obsessive butt-licking falls into the category of something you want to correct. The other thing to consider is that if the female dog doesn't like it, she will correct the puppy too. And you have to let her, because that's really the best way for the pup to learn the lesson. If the female doesn't mind the butt-licking? Well, like I said, dogs are dumb.
at 2:36 PM on Aug. 27, 2010