EARLY-GO and Yaumo.
OK; you 2 are right and I shall now share my secret with you:
I frequently suffer from fatigue and this has absolutely nothing to do with working 5 on - 1 day off most of the time and not getting my annual leave. It is exclusively due to my wild personal life so full of loose women, endless amounts of beer, whisky & wine as well as smoking joints practically every night. Actually, it is quite normal for me to roll around in my own vomit with the rats in the sewers of Wanchai 2 hours before the beginning of my shift, have a quick shower, throw some after-shave onto my face, and then off to control airplanes without being able to see straight – great fun I can tell you! Then – oh dear, after 2-3 minutes of my shift fatigue usually sets in!
Dammit – you guys are just too smart for me so please keep this secret for yourselves? BIG BIG SECRET!!!!! HUUUUUUUUSSHH!! OK?