This has happened three times now, my adult guests leaving their children/minor sleeping while they went out to do other activities.
i have found out accidentally by doing my laundry and the child is there or the child comes up to visit.
When I speak with the adult guest, the response is “what was I do they where sleeping ” my response is I was unaware and what if i had an emergency? They walk way and sluff it off. They also chose not to review me.