As bar promos go, we're pretty taken by this one.
The excellent Sam's Bar is offering free cocktails to customers tonight – and every Thursday – provided they can beat the barman in a simple game of rock-paper-scissors.
There don't seem to be any extensive terms and conditions, or sneaky asterisks on the poster, so we're going to take this one at its word – and if you really don't fancy shelling out any cash tonight, you could always swot up using the video below, which uses game theory to demonstrate how the game can be won without fail.
Does your bar/local have a deadly promo that we should know about? Email me on [email protected] and let me know!