A few weeks ago I dragged my children (13 and 11) around the garden centre on a visit that lasted longer than intended. On returning I remembered I'd forgotten something. Instead of taking my now fractious kids back the GC I decided to go to the local DIY store (5 mins away) and leave them at home. I was gone less than 20 minutes during which time the elder child allowed the younger one to go to a place he is not allowed. The older one, getting cold feet, went to fetch him back and in so doing locked them both out of the house. In order to get back in they knocked on my neighbour's door (a social worker who fosters 3 children), explained they had been left alone and could they go through her house and climb over the fence because they had left the back door wide open. I wouldn't mind so much but we have never left them alone before! Anyway my eldest Son, who is a big strapping lad, insists from next year he won't need a babysitter. I don't agree and I think the law is 16, but what about when he's 15 and 6ft tall? What do other people do?