Rock Paper Scissors is ideal for decision-making when you can't concur
https://rps-gambling-e-d-a-j4-045.valiantfield.com/posts/10-things-you-ve-learned-in-kindergarden-they-ll-help-you-understand-rock-paper-scissors
Rock Paper Scissors is perfect for decision-making when you can't agree. Pick your gesture, count down, and let opportunity settle the dispute.