aguahombre, on 2014-September-09, 08:46, said:
And I am sure a player who made a bad 2nd overcall in the same suit might love the opportunity for a counter penalty if someone didn't alert the penalty double. You think his partner could have done something about it if he knew the double was penalty?
Your second sentence is the reason why damage is unlikely to follow from a failure to alert in this instance, but I'm afraid I have not the faintest idea what the first sentence means.