Gibbs' steering wheel breaks and pins him inside the car. Even Farnsworth, who spent a day in the driver's seat testing the stunt and filming long shots as Harmon's double, admits it was an eerie feeling. ''You get in the car, the steering wheel comes across your lap, you take your mask off, you take the regulator out of your mouth, and the doors are shut. It'd be like somebody puttin' you in a coffin.''

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