you do not go out for the evening and leave them to my own devices. Because a neighbour did this at the weekend. She popped round to me before she left to ask me to keep an ear out for any rowdy behaviour and left them to it.
Apparently all was well (DH popped in to check on them once and they were all playing on the computer) but I doubt very much she told the parents of the visiting children that they were going to be unsupervised all evening.
Am I being overprotective or is this not on? And what do I say next time she lets me know that her DS is home alone? Because there will be a next time.