I always knew dogs are smart!!!

I had a Doberman many years ago. I taught him to go to the door and bark when he needed to go outside by talking to him and telling him what he needed to do. I went to the door and "barked" twice, opened the door and went outside. I did this twice, then left the room. A few minutes later, I heard two barks. When I went back in the room, Prince was sitting proudly by the door, wagging his butt, waiting to be let out.

Prince giving Spike a kiss: