I saw a rule mistake in Catan that helped me come back and win. I stayed quiet because I was losing badly. Now I feel bad about not telling my friends.
Hold up, you stayed quiet just because you were losing badly? That's crazy to me, since one wrong rule in Catan can flip the whole game. I mean, was it something big like messing up how many cards you get on a roll? I'd be kicking myself for days after a win like that.