IMO.....
1 & 2 are black & white.
Number 3 leads you into the grey areas of how the dogs could be correct in only McCann related areas but effectively failed in all other non-McCann related areas. That issue is compounded if Madeleine was, in fact, removed by an abductor & taken towards the seafront.
I just can't see an innocent explanation for the VRD alerts to Sean's T-shirt & shorts when the other not-so-random alerts are factored in to the intelligence gathered during the dogs' deployment.
Only an idea, but how about if Kate had cuddled him one day after work and Cadavar odour which had contaminated her clothes had then passed on to Seans T shirt.
And most clothhes packed were clean but a few were worn a little before. It would be a mammoth task having sufficient freshly laundered clothes, along with all the other things that kids need, ready to pack for three little ones.
But let's not forget, Eddie was double trained. He marked 1) Cadavaer odour and 2) the dried blood from a living person.
We have no proof that Keela checked this T shirt, and identified dried living blood , or not. Without her check, we don't know if Eddie was identifying cadaver odour or the remains of dried blood from a living person
So he could have been marking the dried blood of a living person. Soys are always grazing themselves.
We just dont know, do we ?