Good grief - just no! Doubly so with a dog in the picture. My children adored their grandparents but never went to stay overnight on their own and none of the grandparents ever thought to suggest it. Why would they? They would have happily stepped in a crisis but this never arose. Actually, thinking about it, they did stay with my Mum once while we had a weekend away - they we're 12 and 14. Not sure who was looking after whom 
if your recycling or rubbish collections days are Monday,Tuesday,Wednesday




