Years ago I commuted from Ipswich into Liverpool St, and my train of choice was the 0642. One morning I was a bit late in getting to the station so didn't have time to pick up my coffee at the platform kiosk, and once the train was under way made my way to the buffet to get one.
By this time it was 0650 at the latest, and the guy in front of me, suited and booted ready for a day in the City, was ordering a double vodka and tonic, which was served with a cheery "Here you go Mr Smith" - clearly a regular!
Now *that* is a drink problem!!