Chelsea had been semi-dozing when she heard the clatter and swearing. "Huh?" she said, lifting her head up a little bit to look up at the noise. "Oh, shit, that's my fault, I thought I'd put that further back." She pulled herself up and pulled it further out of the walkway. "Oh, man, um, are you okay?" she said, taking off her sunglasses. "It has a mind of its own sometimes and likes to bump into people," she said with a giggle.