I recently made the (long-mulled-over) decision to leave DD (13) and DS (12) alone at home overnight with close supervision by friend and neighbours. Both children are sensible, trustworthy and used to being left for a few hours at a time.
One of DS's teachers learned of this and, without making ANY attempt to contact me, or any of the other emergency contact numbers (4 in total) called in social services which resulted in a plain clothes DC turning up on doorstep and questioning DD.
Also DS and DD attend different schools - DS's school had the cheek to email the other school and alert them of the "problem". Thankfully this school seems to be a bit more in touch with the pupils and actually listened to DD when she told them that she was perfectly happy with the arrangements.
But WHY couldn't DS's school even attempt to listen to him properly before jumping to (very wrong) conclusions of neglect?