You sit down at the table, agree on the game, and place your bets. Your opponent nods along, but when it’s his turn he screams “Actually the game is 52 card pickup!” and flips the table over, then says he won and takes all the money. You grumble that that’s not how this works but offer him double or nothing. You repeat this for 40 years. Congratulations: he went low, you went high, and he’s torching the building with both of you in it because it’s his now and you can’t stop him.