Hi Mehmet...
Well I think that you began to solve the "problem" as you like to call it but if you need the real benefit of the lecture you can imagine that nobody inside the hall but you

...!
You may find my words strange but what I'm trying to say here is when you attaend a lecture(hard job

) you have to get use of it as much as you can so it does not matter where to sit ( near a guy a agirl)
I'm talking this way coz I used to choose the lectures to be attended according to the Doctor's style and of course the subject itself....
Finaly I really hope that you all mix together

to get rid of such problem

By the way Bloodsone , the 5th grade doesn't have such situation anymore and you can mkae sure by your self