....
As long as the lesson doesn't kill - It can easily go further than just knock you out and make you sick - The sick tends to be very liquid and if you're on your back you can drown in it, blood pressure can drop very dramatically, your body temperature can go stone cold, you can't be roused, etc. Head injuries can be sustained as you collapse.
My daughter is definitely a sensible girl and I'm confident she'll take great care in the future - So lesson learnt without me making things worse by giving her any lectures or telling her off. All I've done is explain the potentially grave dangers. She's feeling extremely sorry and apologetic about it.
Thanks for supportive posts, guys