BUYER BEWARE: They will take your credit card and have you sign a piece of paper for opening a tab. Problem is they always put charges you didn't authorize on the card. Just recently I went and had bought a round of drinks, myself and two other people. The bartender said it was $12.00 and thats all I got for the evening. Once I looked at my credit card statement they had actually charged me $40.00 instead of the mere $12.00.
This isn't the first time this has happened, there are three other occasions that are being investigated by my credit card company since this appears to be the way they do business.
Be wary of opening a tab here or you might end up paying more than you actually should.