I live in Oman, I know booze will be expensive and normally avoid the International Hotels.
However, I did go into one recently and ordered a draught beer, they weren't working, so I looked at the bottles available and chose a Grolsh (More than 1/2 pint, less than 1 pint)
I drank it and had another, then asked for the bill...
It was nearly £16!
More fool me, I know.
But what is the most you have paid (wittingly or unwittingly)