`` calm down , but this will be useful to you life long , i can bet that you will not face any problem after understanding these points , they are really very useful , '' he said . `` i should be thanking you , not the other way around . '' `` still , i should n't have said it and i 'm sorry . '' `` oh , that little darling goes in the girl 's room , '' i say , then i check all my files for the third time today . 