MONTPELIER, Vt. (AP) - Vermont's highest court is being asked to decide what a dog's love is worth.The state Supreme Court on Thursday began hearing a case that started in July 2003, when Denis and Sarah Scheele, who were visiting relatives, let their mixed-breed dog wander into Lewis Dustin's yard and he fatally shot it.Now the Scheeles, of Annapolis, Md., are asking the court to carve out a new legal