The first "Interview" and My experience...!

Well ,it's been the second month that I finished my academic session at SBKWU(convocation awaited).In this period I thought alot about my future that what I am gona to do?.I thought of further studies and doing a job,but after having the busy life at University I realized that I am not in that state of mind to continue further studies at least "now".So I thought to do a job.Yes a Job in person.I have the experience of doing many jobs but they were all online.I needed some real stuff to have experience with,before dropping my resume everywhere I selected my home ground to start my career yeah it was my school where I applied first.Unfortunately my school from where I did my matriculation, do not teach computer sciences so they didn't need a computer teacher but still to "do the honours" I dropped my resume here.I was surprised when I was called for an interview.I was glad that at least for the sake of courtesy they called me up.Unlike other candidates I was completely unaware of the job they were interviewing for.So I went to give an interview.I knew all the interviewers except few.One of them was subject specialist I guess.He asked me about my field and subjects.At that time I was remembering the Interview tips i had read on Internet,their summary was " Never give up and prove yourself the master of all".Oh my God that summary of many Internet interview tips made me trap in that interview.When the principle of the school asked me that If there is no post for computer science teacher in our school then what are other subjects that you can teach? I was in mood of acting on "Internet tip".I said I can teach English and Pak-studies.Here you can't imagine what happened next the interviewer left my own field behind and kept asking me questions about English grammar and Pak-studies.At that time I realized that by just acting on the silly Internet tip I trapped myself.I should have told them that dear sir ,I am a computer science professional.I can be a good computer science teacher, a bright IT officer a brilliant Web-developer ONLY.I have nothing to do with English or Pak-studies since they were only the subjects which I enjoyed studying during my time at school.So My all nears and dears whenever you go for an interview just be honest and truthful.Don't prove yourself the "super woman" or that spider man.State your objective and stick to your own field of interest.I guess I am the first and one and only Computer Science graduate who was asked the English grammar and Pak-studies questions instead of computer related stuff and the reason for this unexpected interview questions was of course ME..:)..Learn from my experience and have a good first interview.