I have recently started watching a friends 2 boys. I have 2 small girls, ages 2 1/2 and 4, the boys are 5 and 7. The 5 year old boy insists he is a dog when he is at our house, crawling, barking and even peeing like a dog outside. I have asked him to stop peeing outside, only because I don't want him to go infront of my girls, and the kids play out there, I don't want them to play in it! I brought it up with their Mom today, and she said that he does it at home too. Taking it one step further, she said he had even gone outside to go poo, then got their dog to come down to eat it. Is this normal? Is there something I should be watching for? Could it just be a 'stage' or is it typical of his age group? I don't want to panic or jump to conclusions, but I think it is wierd!