I am not sure I actually believe this happened - sounds like an urban myth to me, the fact an almost similar story was about a while back (with the same only gone for 30 mins etc) makes me wonder. To me it is written in a way to inflame to get traffic and comments for the website.
I mean if I was somewhere 3 adults 3 babies I certainly wouldn't leave one adult with three babies at nap time - one adult would go get the food - why would two go? - because the story would not work otherwise.
On the issue - I would be fine with it if consent had been given, if it hadn't I would have been annoyed but I would have got over it.
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