From BBC program, about a resort in Egypt
"a girl under the age of five had escaped through the window of a room and was found wandering around the complex within metres of the pool."
Precisely Misty, this highlights the possibility that a home-alone child may possibly go to look for the parents if the child thinks they are nearby. Did the child in PDL know the parents were only 90 metres walk away at the Tapas restaurant?
What it actually highlights is that MW Listening Service was no better than the checking service done by the McCanns themselves.
Had the child in Egypt drowned in the pool, would we still be speaking about his/her "negligent" parents even one year on? Of course not.
Legally, a listening service is OK. It's OK if someone is patrolling a round route of 800m in a 15-20min period and only listening at each designated window once, briefly, during each round. So why isn't it OK for a parent to be no more than 50-100m away & return to the room to perform a more adequate check?
I don't believe Madeleine did know where her parents were eating. Had she done, she wouldn't have settled down to sleep imo.