Beware of the Bartender.
Our friend had a tab open, we charged the first drink to the tab and the second drink was charged my credit card, then my friend paid for the 3rd drink with cash. The bartender added the cash drinks to the tab of the first credit card again. So we paid twice if not three times, we noticed it the next day when looking at the receipts.
We only had 3 rounds and paid cash for one, the bartender took the cash and also added the double amount on the credit card. We did not complain because our friend is well know there and we did not want to have any issues for him. Next time we will check the bill after every drink or food we order and bring it to the managers attention. Beware! Four of us witness this.