As usual, your irresponsible kid sister calls around 11 pm, and, for a change, you give her the brush. It's hard to focus when your honey is licking your neck, and besides, who needs the latest installment on her crazy boyfriend? Twenty-four hours later, she phones from Reno to say she just married the creep. Your response? Compulsively replay the scenario for compadres, office sidekicks, your shrink. . .you couldn't have stopped her, right? Or remind yourself of all the phone time you've given her, with zero results?