Ill tell you the story of two Polish divers, we will call them 1 and 2 because if someone told their wife's 1 and 2s last act on this earth would be to end me, probably with vodka.
They would come to Vis to dive for a week. They would bring their own gasses, boosters and booze. Actually most of their dive van would not be filled with dive stuff but vodka and beer, the last one is for hydration purposes only.
For a week straight 1 and 2 would do insane dive profiles that would kill someone who had blood in their veins, luckily 1 and 2 would make sure their blood alcohol level would be more accurately called alcohol blood level.
They would not go to sleep but drink the whole night, I would try to join them but unfortunately my 20 something year old liver would not be able to survive being in proximity to their breaths for more then a few minutes. In the morning while the rest of us are sipping coffee and slowly lugging gear to the boat, they would be on the boat drinking. With the gear all ready.
Between dives they would drink. Actually I'm 100% certain that they even drank during deco stops. I'm guessing that the only reason their deco times were so short is that their dry suits did not have enough pockets to carry more booze.
These guys would drink their whole dive booze van dry, and when the last bottle was done jump on the ferry and DRIVE back home.
I'm not exaggerating, well I am but not that much.
The point is don't drink with Polish people if you want to be productive in the next few weeks.
The other point is that there are plenty of dive operators that don't care how much you drink as long as you are capable of getting on the boat and getting off it later.