Jealousy..thy name is Diesel

Well, Landon is not even here yet and Diesel has began doing defiant acts which appear to be...jealousy! Yesterday I gave him his dinner and after he ate he ran towards the stairs. I got up and followed and before I reached the bottom of the stairs I heard the sound of him urinating. As I reached the top of the stairs, I saw the spot directly in front of the nursery. Andy and I assume that he does not like the room because it is off limits and when he is allowed in he gets into trouble for chewing on or scratching things. I have heard from others that this is similar behavior to what other dogs have done when a new baby is introduced to the family. I cannot wait until Landon gets here and see what Diesel will do.