(plaintiff’s property stored in defendant’s barn; separate dispute occurred regarding damage to real property, defendant locked barn and would not let plaintiff retrieve his property in May 2004; plaintiff discovered property missing 15 months later; brought civil suit in August 2010 for civil conversion; conversion occurs when possessor exercises any dominion contrary to owner’s rights; summary judgment granted because claim brought more than six years after May 2004 when conversion occurred; case affirmed on appeal and dismissed).