To Sleep or Not to Sleep?

So here's your usual everyday situation. Prof teaching in class. Guy sitting on the last bench and dozing off. First benchers listening intently to prof. Rest of the guys half-heartedly listening or 'conversing' or staring into space. It's the middle of quiz week (so most of them would be sleepy anyway) and it's a nice, pleasant day.

 

Somehow the prof notices the guy sleeping at the back of the classroom. Attempts are made to wake him up. Dazedly he realises that the prof is talking about why students should not sleep in class and that this topic was in fact brought about solely because of him catching his forty winks.

 

And hence followed one of the best conversations I have ever heard in class:

 

Prof: Why are you sleeping in class? Don't you sleep in your room?

 

Guy: Sir, I couldn't sleep last night.

 

Prof: So you sleep in class. Next class onwards you will sit here in the first bench, where I can see you.

 

Guy: ... 

 

Prof: Why didn't you sleep yesterday?

 

Guy: (And this is the best part ... He could have said that he was mugging for quiz, which the prof would have more readily accepted. But, no ... He had to say:) Mosquitoes, Sir.

 

Prof: ... Mosquitoes? Ah ... Ok ... So they bit you all night?
 

Guy: No Sir, I woke up at 3 a.m. and killed as many as I could.

 

Prof: You're an engineer, you should have improvised upon your methods of preventing the mosquitoes from entering your room in the first place.

 

Guy: Yes Sir, I woke up and I covered all my windows. (That's how the 'engineer' solved the problem.)

Prof: You could just have used mosquito coils or All-Out or something like that.

Guy: Sir I can't use mosquito mats because I'm allergic to them.

 

Prof: (dumbfounded) You have an answer for everything.

 

Our 'engineer' had made his point :P