Rock Paper Scissors is perfect for decision-making when you can't agree
https://rock-paper-scissors-gambling-game-d-z-f-x8-454.keystonescope.com/posts/nine-things-that-your-parent-teach-you-about-rock-paper-scissors-casino
Rock Paper Scissors is best for decision-making when you can't agree. Choose your gesture, count down, and let chance settle the argument.