"Yeah," Harry said, watching Hermione go. He shoved his hands in his pockets. "Look, mate, I'll take the couch. I got us into this, you saved our arses getting us out of there."
His tone was light, but he wasn't going to take no for an answer. Ron and Hermione were both doing useful things, and what had he done? Written some stupid journal entry that had forced them all to cover their tracks more than usual. Maybe the precautions hadn't been necessary, maybe they had, but that wasn't really the point.
The point was he had done more to bring them down today than to be of any use. Ron obviously went to more illegal trouble than he and Hermione had realized to keep them alive, and Hermione was brewing something - more Polyjuice, he assumed. He, Harry, was supposed to be the leader, but he was just as lost as they were. His only talents were attracting trouble and then surviving it. At least before he hadn't attracted trouble out of sheer boredom - that had been a stupid move on his part.