Okay so this one night me and a couple of friends are out drinking, and we're playing this game where you have to guess the amount of fingers on the table. Every participant puts one finger on the table. Then the first player says a number corresponding to the amount of fingers they think will be left after they have chosen said number. Everyone gets to either remove or leave their finger on the table, but you have to act as soon as the number is said so you cannot cheat. If you guess the amount of remaining fingers, youre "out" (you win).

So at a certain point there's only two people left. One guy, one girl. Both intoxicated. Its her turn to guess. She can choose either 0, 1 or 2. This tends to be an intense stare down since whoever loses has to down a beer ad fundum.

So this girl is looking right at my friend, and i can tell she does not want to lose this game.

"TWO" She shoutes, while removing her own finger from the table. A moment of silence and then... Laughter for two minutes straight... My mate had kept his finger on the table but she had not, and the best part was that she didnt even realise where she went wrong lmao. Needless to say, we didnt make her drink the beer, but we did make sure she never forgot haha.