Poor Winston he's got the look of a shameful poop hoarder. Since I know a little more back story to this I think he is trying to mark his territory over Barney who trying to show dominance over the pack. I don't think you will be able to stop him since this is not a poop eating issue and more a territory issue between the boys.
__________________ “Never argue with a fool, onlookers may not be able to tell the difference.”  Mark Twain |