Just found out that there was an "incident" at DS's nursery this week. He "accidentally" was left inside on his own while others all went outside into the garden. The garden backs onto the room he was in and there are the room is very child friendly - no obvious dangers. DS was playing happily on his own when discovered 15 mins later. Nursery have launched a full internal investigation and are very apologetic. Not sure how I feel about the situation. In every other way we are completely happy with the nursery. Any comments would be welcome!