The scenario - a group of school friends (all girls) planning an evening at a local nightspot with an above 16 years age limit. The visit is to celebrate the end of the school year. My almost 17 year old is going, along with a group of her friends. A group of our youngest daughters pals are also going. Most of them are 16, but our youngest is 15 as she's an end of August birthday.
Youngest D - I bet you won't let me go will you?
Me - Well, as your sister and so many girls I know well are going, and you're sensible (etc etc) maybe I'd consider it
YD - I knew you'd say NO
Me - I think what I said was I'm open to discussion, though I would rather you wait till you're 16
YD - That's it, then I knew you wouldn't let me
Me - Would you rather I simply said No, so you can tell your pals you aren't allowed?
YD - ok mum, thanks, I'll tell the others you just won't let me
Sighs of relief from YD (and from me)