Remember few years back on holiday in Turkey. Both the boys had a seperate apartment to us. We'd have our meal together of an evening (as we were paying!)...then they'd go off and we'd meet up at about 1-2 in the morning for last drink and back to hotel. Up to rooms...fine. Until I discovered (MUCH later!) that after I'd listened to make sure they'd locked their door properly....they'd promptly climbed straight out of the window and gone back in to town!!!