The castings seem endless during fashion week, the days long, encroaching into the next long before we crawl into our nests for sleep. We lack energy, go to bed at 3am after evening fittings and slowly, well, it’s no surprise some models lash out. At the top houses – such as Dior and Valentino – the queues can last for hours. Here’s what I’ve overheard …*“I don’t know why Hedi stays silent. I almost want to trip up and see if he laughs.”“Oh man, the stylist at Carven.