I've been trying to find a report written in c2008, possibly by KCL, highlighting the extent of 'problem drinking' in the Navy. The percentage figures of those who regularly get blind driunk (which I won't try to recall) were simply staggering.
Echoing other posts, friends of mine in the City generally confine drinking almost exclusively to Friday and Saturday nights. Turning up for work 'worse for wear' is one step closer to being sacked these days.