What is it with all this drinking?
I'm a bit surprised that anyone gets to drink on the job. Many years ago when I served a an engineering apprenticeship, you'd get a five minute tea break in the morning when the tea trolley came round, and nothing in the afternoon. I don't recall anyone drinking in the meantime. There were drinking fountains in the shop, but seldom used, and no-one ever spilt a drinking fountain. If you can go through eight hours of kip without getting up for a drink, I'm sure the same would apply in the day. It's not exactly a manual labour environment, so you're not replacing the sweat of toil.