I don't like helped from someone. but recently, i sometimes owe to co-worker. because i working Speaker RnD center about 3 years. i think Speaker is difficult and complicated. i need know about speaker professionally. so 3 years are very short. so i sometimes request helped to co-worker. example, about speaker simulation, speaker structure and effective design...etc.. but i study very hard, and i will know many amount speaker system. so i will help my co-worker.