I've been around for a while, so I can understand what young chain-pharmacists go through on a daily basis - constantly getting knocked down by everyone - their customers, their co-workers, and even their supervisors. They get it from all ends. It's tough work, and it's a chore to deal with every day.
So, it's understandable that the only way they can deal with the daily stress is to get together with their colleagues after work, have some fun, throw back a few drinks, focus on the positive aspects of their job, piss the night away, and try to get motivated for the next day.
I don't know how long they'll last doing it, but you've got to admire their consistent youthful tenacity.