barmar in Fundamentals thread, on Sep 4 2009, 11:47 AM, said:
David is correct. Adam's simple rule, while it sounds fair at first glance, is what leads to the infamous "double shot" problem that we frequently face. Once a player commits an infraction, the opponents then have almost free reign to take wild risks; if it doesn't work out, they get the director to cancel the bad result because of the infraction.
The double-shot rule severely penalizes the victim of an infraction, often adding insult to injury, and sometimes preventing infractions from being reported.
Typically, a player, who knows the "double-shot" rule, is discouraged from calling the director when his expert opponent commits an infraction because the director may judge that a subsequent action by the victim is "wild and gambling" or egregiously bad. It inhibits him from any risky action (for example jumping to a slam) even if he would otherwise take that action, without thought. Notice that, the poor victim is unsure that opponents have committed an infraction or that the director will recognize it as such; so all this worry and pussy-footing around may be for nothing.
An example of another problem with this rule. An expert pair misexplain a bid. As a result their average opponents double a non-vulnerable part-score. In the course of play, the victims realise that, normally they would reach a making vulnerable grand-slam. They defeat the partscore by a couple of tricks but cease to take any interest in the defence, believing that another undertrick will hardly affect their result. The director disabuses them, depriving them of full redress because of their gross error in defence.
The "protect yourself" rule also penalises the victim of an infraction and often adds insult to injury. Why should the victim of an infraction have to take special extra measures to merit redress?
A typical example. An opponent makes an unalerted bid. Most partnerships define the bid as a transfer. If so it is alertable. And if it is a transfer, you want to double for the lead. You are in a Morton's fork dilemma ...
- If you don't ask, then you fail to protect yourself and may lose redress.
- If you do ask and the bid turns out to be natural, then your predicament is worse. Partner is in receipt of unauthorised information and must lean over backwards to avoid any action so-suggested, if there is a logical alternative.