premise: He pulled up in fourth gear at the foot of the balustraded stone steps which led up to the solicitor's office. Totteridge, Spruce and Hardnut, Commissioners for Oaths, said the brass plate. He took the scuffed leather document case off the seat beside him and banged the door shut with the violence of someone who had not learned that car doors do not need the same sort of treatment as those of railway carriages.
hypothesis: car doors do not need the same sort of treatment as those of railway carriages