YouTube's favorite conman Richard Wiseman has returned with ten more bets you'll never lose, just in time to spice up the never-evending barrage of holiday parties and family get-togethers this time of year.

The trick where simple science and a little gravity is used to magically swap water and whiskey between two shot glasses is particularly neat, and it might be the one bet that leaves the loser impressed enough to not want to take a swing at you. [YouTube]