Just like human siblings sometimes they can be irritating to their siblings. Oh, you have that toy? I want that toy. They are in that learning stage of trying things out and learning boundaries. If one is being a pain they usually just stop playing with them but if they don't 'get' it, I give them an extra hand and say no. Both essentially is the same language - the play stops. By about 8 weeks they get it without any extra help. This is a normal phase and I noticed they are testing.
No one growls. It's simply I am going to pursue you till you play with me or give me that toy. Sounds like kids, doesn't it? They are learning respect. Oh, you don't want to play now. You want to sleep - ok.
It's a great stage as you learn so much about them. They learn patience and coping skills. This is a great crew and no one has become upset when things don't go their way. We have only had okay I want that toy so I will pursue you experiences but even that never escalates.
Interesting enough I can put treats in with them (1 per pup) and no one tries to steal or has any food aggression. They share quite well. It is one of the ways I test them. If they can't share as they like the treats so much and can't see past that, I remove them and I try again over and over again but this crew has done well with this test. Those that do not at first actually benefit from the conditioning and arrive at the same point. So don't judge. I am only sharing with you what we do so they have the learning experience in a positive way.
Be sure to check out the videos.
Monday, January 2, 2017 at 6:51PM 
Two more days we head to the vets. Our daughter, our 2 grand daughters and Dennis, or son will hold down the fort. Before we depart I will have washed and trimmed dogs that are doing home that day. I will pray they don't get dirty. heh.
