%irst, Dobie is an intelligent and logical person. &t the beginning of story, Dobie firstly describes himself: 'Cool was # and logical. (een, calculating, perspicacious, acute and astute"""# was all of these. )y brain was as powerful as a dynamo, as precise as a chemist*s scales, as penetrating as a scalpel. &nd"""thin+ of it # am only eighteen