I took a bath yesterday, he thought. Isn't that good enough? But they might have more demanding expectations of hygiene, and a refusal would make him seem like a petulant child.  Furthermore, if it was that important, and he refused, there was every possibility that the guard or the nurses would hold him down and bathe him against his will—if the somewhat common sniffing behavior he'd noticed was an indicator, they might be very sensitive to body odor.