The young girl was fine although I was later told she went home crying as she was upset with braking it. I've spoken with the teacher to stress that she wasn't to blame. The teacher and pupils were a little confused to why it broke too...
As you can see, there is no scratch or dings... it would be helpful if there was so I could see where the HMD made contact.
she did have her glasses on... could that have had an added effect to this freak shatter? her glasses were fine though, no damage to them either... as I said she wasn't hurt, just explained the screen was flashing...
Thanks for the PM I'll email them now with the info you've suggested.