In New Haven there there are two hidden chests. When you obtain the quest to enter Trash Coast, head to New Haven and toward the blue shack (below the area where the repair kit is). Stand near the door and it will open. Ride the elevator down and to the basement. Defeat the Psychos and open the red chest to find the Rider. Rider is a unique sniper rifle manufactured by Gearbox, the maker of Borderlands. This weapon, along with other details in the room (a trash pile Christmas tree and a grisly leg lamp), are references to the movie "A Christmas Story."