In Oriental Rugs it is said "only Allah is perfect", if the rug's creator doesn't make a mistake, they intentionally create a mistake. If you look carefully at an oriental rug you will see an area with the wrong color yarn used, or a tail coming off the design. I have learned long ago that I am not perfect, nor is my work. I have discovered it is a lot easier to accept mistakes and change the ones I choose to. I am also old. That makes a difference too!