We expect this sort of thing from glamour models, Reality TV wannabes and soap stars, but not best-selling authors – but hey, that’s what makes it funny. At last night’s Galaxy British Book Awards, JK Rowling had a wardrobe malfunction, when her low-cut purple dress kept slipping down, revealing more boobage than planned. But luckily, the Harry Potter writer had a helpful gentleman friend on standby to cover her modesty – and, as you can see, he took his hands-on role very seriously…