Wednesday 2nd May was the one night they stayed out longer than usual and went into the bar. Kate says because of that it was probably 45 mins between their last check and the time they got home. After what Madeleine said on the morning of the 3rd they decided to stick religiously to the 30 mins checks in future.http://www.mccannfiles.com/id136.html
Nevertheless, it can also be concluded from the files that this surveillance with the periodicity that was mentioned above was not the one that is alleged in the files, which leaves unexplained why, on that night, the procedures were altered in the sense of reducing the checking intervals.
In effect, this group of friends was enjoying a short holiday period, therefore perfectly relaxed and it would be normal that, having dinner, inclusively with an entertainment service available , they were not very concerned with anything that might happen to their children during that dinner period.
It is so much so that Kate herself mentions that on Thursday morning, the 3rd, Madeleine questioned her about the reason why they didn't come to her room, given the fact that the twins had cried , as was also mentioned by Gerald.
Pamela Fenn, who resides on the residential block's first floor, above the apartment that was occupied by the McCann family, clarified that on the 1st of May 2007, two days before her disappearance, at around 10.30 p.m., she heard a child crying, which from the sound would be MADELEINE and that she cried for an hour and fifteen minutes, until her parents arrived, at around 11.57 p.m.
This shows that the parents were not persistently worried about their children [and] that they didn't check on them like they afterwards declared they did, rather neglecting their duty to guard those same children, although not in a temerarious, or gross, manner.They didn't check on them like they afterwards declared they did,"