Some people get a kick out of reading railway timetables and that's all they do all day. Some people make huge model boats out of matchsticks. So what's wrong if there happens to be one guy in the world who enjoys trying to understand you?" "Kind of like a hobby?" she said, amused. "Yeah I guess you could call it a hobby. Most normal people would call it friendship or love or something, but if you want to call it a hobby, that's OK too.