I had heard radio advertisements for last night’s Late Show with David Letterman so I was surprised when I realized the program was a repeat. That was not the original plan. Snowboarder Tara Dakides, a guest on Thursday’s show, fell 25 feet from a ramp that had been set up outside the studio to showcase her stunts. She landed on her back and was taken to the hospital. Letterman halted taping and went to visit her in the hospital. Dakides had some stitches in the back of her head and is in stable condition.