Funny that when I read thru the posts most responses are worried about "beiing exposed" to colleagues and public rather than about the fact that these checks are aimed at discouraging crews to use alcohol in such a way that it endangers safety of passengers and fellow crewmembers.... If you dont have anything to fear..... who cares that people watch you and as far as I am concerned, anyone that DID use alcohol at a time that it endangers safety (jobwise i mean... ) may be seen by anyone beiing arrested , showing that these things are NOT acceptable....
proost.....
