Riding through a slope

Once a Doctor in Shadra, (in Delhi) mental hospital decided to discharge the patients who are mentally OK. The physical tests like blood, urine or blood pressure will not prove that the mental patients is ok. Some other means of checking needs to find out who all are ok. So, Doctor Called all the patients and said to them, “I am going to send home those who are well. So do one thing. You should not go by walk. You should go by a bicycle. The patients started to act like they are riding the cycle. Doctor become very upset to see that they all are not well. In between them one man was not riding cycle. He is standing steady. Doctor become very happy to see that atleast one man has become alright. Doctor called that man and asked him. Are you well? He replied “Yes Doctor, I am Alright”. Then Doctor asked if you are well why don’t you riding cycle. He replied that I was riding through a slope.