Suppose a weaver produces a piece of tartan and something goes wrong in the weaving. For instance, a wrong color is used or a thread snags and makes a "pucker" in the fabric or somebody's coffee gets spilled on the fabric. What happens to that piece of fabric? Is it thrown in the garbage or sold as second-quality or used to mop the floor or what? I would assume policy would vary from weaver to weaver, but what do you suppose happens to imperfect tartan?