I think he may be a psychiatric patient (short short day), there are quite a number of psychi patients in Chai Wan. Few months ago, I parked my car at roadside in one of the public estate in Chaiwan, the road is very big and I should not hinder anyone, one man came to me and asked me to park somewhere................ from his gesture, he was obviously psy psy day. We have a very good hospital in Hong Kong East . but there are also drawback.