Why did they leave the infant alone with a 7 year old?
They were outside on the lawn... Its not like they went to the store..
I left my newborn alseep on couch one day and went to cook some food for my 3.5 year old and myself. While I was gone he picked her up and moved her onto the floor. He did so with no malice, just curiousity. He has looked after her ever since if she is in any type of danger and he is around. Excellant big brother.