You could go in the vault with your work gear on in the days when people had a few at dinner time.........and no, I don't mean solicitor's in Manchester having a few at lunchtime and then billing the Client.
Same applied in the evening with the Vault. Card games, darts and occasionally bad language................you took your girlfriend / wife in the 'best side' (lounge bar)
I often think the trend to create one-roomed open pubs has been part of their downfall, in that a lot of people these days don't know how to behave in a pub when others are in there with their Mother or Wife having a quiet drink or a meal. Having fella's fooling around, continually effin and geoffin has put some people off pubs ..........the best side and vault took care of this and made it simple