all of the above is the same for alcohol, or being a posting member of FreeRepublic......
At what point does a woman decide that her habitually abusive husband is no longer a threat to her? At what point does a person decide that his debate opponent that is rife with non sequiturs and illogic has suddenly become rational?
First the husband must acknowledge that he has a problem. Likewise, first the irrational debater must realize that he or she has a problem.