We have made great progress with our 8 month old german shepherd pup. But I have noticed the every chance she has that she is out of our sight she goes to the dining room and pees a line all the way around the table and under the table. This happens every day. No other accidents in the house, never does this in any other room. I thought it seemed like a lot of pee to be marking but could that be what she is doing? It happens so fast that I never catch her in the act so I don't know what to do about it. Any thoughts?