DON'T TELL MOM THE BABYSITTER IS DEAD - Milk changes location

When Sue Ellen pours a large bowl of cereal your first shot of her is looking over her shoulder with the cereal in her left hand and the milk in her right hand then she places the milk down on the table (right side of bowl). In the very next shot its on the left side of the bowl beside the box if cereal when she says "Breakfast is Served." Right when she begins to leave it's on the right side of the bowl again. You see a clear shot of that right when Walter pulls the bowl over to himself. The milk just continues to change location.