So the abductor is in the apartment and getting ready to take Madeleine, he hasnt yet done anything to the windows, (if he ever does)
He hears someone coming and in the seconds available he finds a cupboard that he can fit into in the dark in an unknown layout?
Or he hides under a bed,
scroll down to " Interior of 5A bedroom where Madeleine slept"
here, http://www.mccannfiles.com/id21.html
there is no chance, unless the abductor was vertically challenged, which we know he wasnt according to Tanners sighting.
what about just standing behind the door ? Gerry pops his head in - does a glance it is dark - goes to loo and then leaves ? ok it is risk - the guy must have been nearly caught - we just need to be sure is it possible - could it have happened this way - without realing stretching things to the extreme - which in my mind we are not -