it is a knee length check wool thingy with a split up the back - but the split is sewn together at the bottom (and in quite a thorough way - not just a loose stitch that you could pick undone) - am I supposed to undo it or do I wear it as it is? (Have vague memories of sewn-up-at-the-bottom-pleats in my school skirts that had to be undone once you got the skirt home!) Feeling a bit clueless here - are people sniggering at me for walking round with a sewn up split?!