One morning, bright and early, a few weeks ago, we discovered new neighbors next door... along with everyone else in the neighborhood. Last to arise, I awoke from a sound sleep to an uproar of throaty vicious barking, growling, and teeth-gnashing. Charlie had discovered two big dogs next door (on the other side of the chain link fence) and was doing his best to convince them to leave. They weren't taking any of his lip, and the sound of these three "junkyard dogs" having it out was truly frightening!
Now, several weeks later, it's become a sport. Charlie checks for (the appropriately named) Tank and Thunder first-thing when he goes outside. If they're there, they all race to the fence and bark furiously, tails wagging. Every so often they take breaks... at least Charlie does. He'll jump down the terraces, run around, up the stairs and then fly back to the fence for more.
After a few good rounds of barking Charlie takes a longer break - he goes back into the yard & sniffs flowers, does business, just generally strolls around... while Tank and Thunder stand at the fence and quietly watch him. Every once in awhile they'll let out a calling bark that sounds like "come back!". And if he ignores them too long, they whine pitifully. In awhile he'll respond -- back he goes for another barkfest. And on and on, until finally I make him come inside.