My 2 year male Labrador has gotten into a habit of picking his food bowl and throwing it around the house. Whether it has food or not, he will go and pick it up and throw it every few hours. If the kibbles are there in the bowl, he loves to spread them all over the house and after I have picked each one and put them back in the bowl, he will eat a handful and after sometime do the same thing all over again. I notice he does not like eating at one go, like he used to do till a few months ago. Is this a play for him? How do I check this behavior? It's becoming too messy around the house and I really get tired picking the food each time...so many times a day.