I have acquired the reputation, at dd2's school, of being the person to ask if you have any developmental worries. Presumably by dint of being dd1's mum 
so today I was cornered at drop off, by a concerned mum of a boy in dd2's class. she is a little worried about his levels of boisterousness, and the odd thing here and there.
I chatted a bit, mentioned a couple fo things that (if he were my ds) I would do, and a couple of books to read etc.
she then spent the next 20 minutes telling me she doesn't like to label children, that she thinks society labels too much, and that she doesn't think there's anything 'wrong' with her ds.
I was left feeling as though I had approached her with my concerns about her ds, iyswim, rather than being asked for my opinion (why they target me I have no idea - it's a lovely leafy suburban prep, with high-achieving children, and no one is ever going to have a similar level of issue as dd1, for eg, and so the information they are seeking is quite easily obtainable imo), and it has annoyed me.
I am happy to (within my very narrow sphere of experience) chat about worries anyone might be having. and yes, I suppose I have OTs and SALTs on speed dial
. and half the class has borrowed various reading schemes we have as extra supplementary work. but don't leave me feelign as though I have brought up a very unwelcome subject - I would never approach someone about their child, fgs.