The silly season is definitely here and the heat ­ so to speak ­ is on. Pick of the crop must go to the mysterious case of the combustible M&S knickers. According to the authoritative tabloids, a Co-op checkout operator felt a burning sensation where there didn't ought to be one and went to the loo to find her underwear was disintegrating. In the finest traditions of checkout girls everywhere, she resolved the problem and finished her shift. M&S was unable to identify the cause of her difficulties.{{COUNTERPOINT }}