Talking about sleeping in the same room as the children, IF I out myself here, then so be it in order to show how seriously I take these trips - which have formed a large part of my working life.
The Caroline Dickinson youth hostel case really really shook me. Especially as she came from our neck of the woods and the YH in Brittany was one I knew. When worried parents came to ask me what precautions I was taking, I said a member of my staff would sleep in every room, in the bed closest to the door, with the children. We piled all the suitcases up as a barricade and if anyone needed the toilet in the night we dismantled the pile. These were 9, 10 and 11 year olds. There was no way I was going to take any risks and parents needed to trust me 100%. Nothing is more precious than your child.
When school parties came to stay at my own property in France we took every precaution too, putting the two dogs by the front and back door.
Sorry to ramble here, the mention of the poor school girl churned things up for me.