I have argued this on a thread before and not quite long, but maybe I am wrong. If you are not betting on sport like football, do not bother to choose either yes or no.
Since I have been betting, I have not thought of this before. Is the referee the reason you bet on yellow or red cards?
I love sports betting, especially soccer. On soccer, I bet on win/loss, corners, goals, and/or cards. But I have placed bets only on yellow cards. I have never placed bet on a red card as far as I can remember. And when I place bet on white card in maximum time I became winer and it make me a good profit.