Would like to say that I have never done this myself.
Family concerned live in a "naice" area of a small city.
Once a month the AP has to leave early whilst the Mum & Dad are at a regular monthly week-day evening fixed engagement (which cannot be re-arranged and which they really need to attend).
They have just started leaving the boys alone together for 3 hours from 5pm to 8pm.
AP gives kids their evening meal and leaves them watching TV or playing computer games. They are apparently under strict instructions not to open the door to anyone and to say M/D are in the toilet so will ring back later if anyone telephones.
Parents really see this as giving the 12 year old a taste of responsibility. I have to say they are both mature sensible boys in many respects but....... You just never know do you ?
Is this illegal do you think ? It's only happened twice so far (is only once a month as I said earlier) and kids obviously came to no harm.