Mmmmm... good theory Sal13; someone else made mention to it being a kidnapping, something that maybe the McCanns did, and its pay back time. is that why they believe she is safe and well.
However, when traumatised, it just might have been the first thing that came into her head. I had a little scare this week myself tbh; DD has been reacting to her recent MMR jabs, and wont sleep on her own, so has been sleeping with me. I have to lie with her for about an hour before she nods off. She nodded off one night, I left her on our bed,went down for tea. Later I went up to check she was OK< and she was gone. My heart skipped and I froze, looking at the empty space. DH had moved her back to her cot without telling me. Of course, in light of whats been going on I thought the worst. But the first thing that I thought in my head, was 'shes gone' NOT oh theyve taken her. BUT, we are all different.
unless they did know something prior; but I doubt it. Purely becasue if they suspected even the slightest danger, they would not have left the kids alone, not unless they were phyco's and wanted all this media attention, wanted to raise their own profile, or wanted rid of their kids.
And now readers - we really are on a tangent! but what Im saying is, that everyone is diff; and whilst its a good possible alternative theory Im not sure it works. ?