My boys are 12 and 9, obviously we still need babysiters but I realised when we had a sitter on Sat that ds1 was taller than her and it suddenly occured to me that at some point in the not too distant future we will not need a babysitter! The problem is that I can't visualise when the boys could be safely left in each other's company! Either on their own would be fine (ds1 already stays in the house alone for short periods) but left together there might be bloodshed - and this is from kids who normally get on pretty well. So, any ideas from people who have been there before me? Are we looking at 15/12 or 16/13 or when they leave home?!