She recalled Harv and his buds elevator-surfing in their old building and 
reckoned that this would be a good time to take up the practice. As the car 
rose toward her, she jumped off the ladder, trying to give herself enough 
upward thrust to match its velocity. She landed hard on the roof, for it was 
moving far more rapidly than she could jump. The roof knocked her feet out from 
under her, and she fell backward, slamming her arms out as Dojo had taught her 
so that she absorbed the impact with her fists and forearms, not her back.