HAUPPAUGE - The mother of a Long Island teen killed by a drunk driver has filed an unusual lawsuit to make sure the woman behind the wheel never forgets what she did. Joe Marino, 15, was fatally struck while riding his bike on Ponquogue Avenue in Hampton Bays three years ago this month. Caroline Goss, a Mattituck nurse, was driving the car that hit him. Goss claimed the teen swerved in front of her. The Suffolk District Attorney's Office says it could not prove recklessness and offered her a plea deal. She served only three months in jail. Now, the Marino family has filed a civil lawsuit against Goss. But instead of demanding up to $1 million, they're asking Goss to write a personal check for $300 each month for the next 20 years. "Every month when she writes that check, I want her to remember why she's writing it," Joe's mother Dorothy says. The civil case is scheduled to begin next Thursday.