Working in financial sector in the UK definitely requires a strong liver, since visiting a pub is one of the most popular forms of socializing. It is made only worse by the fact, that quite often the drinks are sponsored by the company. When beer is free it is much harder to say no. And on the other hand you need to watch your tongue, since your boss might be sitting next to you and you don't want to be sacked next morning just because you were too drunk and said something that was never meant to be said.