My friend just told me I’m in a pretty militant mood today, so just to prove her right, let me bitch about the mean mothers at our school gates. Now don’t get me wrong. Most mums are lovely. You’re probably a mum yourself, and I bet you’re ever so nice. But the school gates are a funny place. I suppose they’re a bit like … well, school. You’re thrown together with a load of people, and some aren’t your cup of tea. For years, I’ve been happily choosing my own friends. But now,