somewhere in the sensible part of his head , someone-a normal , sensible richard mayhew-was telling him how ridiculous he was being : that he should just have called the police , or an ambulance ; that it was dangerous to lift an injured person ; that he had really , seriously upset jessica ; that he was going to have to sleep on the sofa tonight ; that he was ruining his only really good suit ; that the girl smelled terrible ... but richard found himself placing one foot in front of the other , and , arms cramping and back hurting , ignoring the looks he got from passers-by , he just kept walking .