Yeah KF a fair point I suppose, but paraphrased from the relevant section in our FlightOps manual:
<font face="Verdana, Arial, Helvetica" size="2">The ANO places a responsibility on crew members, which simply put, states that crew members shall not act as operating crew if they know, or suspect, that their physical or mental condition renders them unfit to operate.</font>
Now whilst I might have been a smidge tired by the end of the week ( and who isn't ? ), I defy you to find fault with my operation of the operation.
The roster that I was provided with was more than legal w.r.t. CAP371 - and so was I !
Thus perhaps a case, of different strokes for different folks and, as they say, 'When the going gets tough..........' and I am the epitomy of tough !