2 or More
Each player must have a full pint of beer and a salted peanut each. All players sit around the table and drop their peanut in their pint at the same time.
Bubbles will start to come from the peanut and rise to the top, eventually the peanut will rise to the top as well.
The last persons peanut to rise to the top, has to down their salty pint.