Aganju: But if I am still blocked on the bar, my opponent can roll again and get out of his ugly position. If his "ugly roll" forces him to unblock the bar, then the auto-pass ends and I get to roll again. "Blocked on the bar" means that, no matter what I roll, I cannot move - I can only double or "pass". If I am wrong, and there is some sensible way that I may want to double when blocked on the bar, when I did not want to double when first blocked, please give me an example.