Exams can be fun !!

Laboratories are fun. Especially during exams. Its the same every year. Practical exams - and I'm smiling. The smile is unusually prolonged. Exams aren't there to make you smile, but practicals are a totally different issue. You can get into the lab as a moron, and return with a coooool 80%.
The lecturers are all prepared, the students...ready for the usual instructions. The day starts off with the lecturers announcing the most probable experiment that we'll have to be performing...the probability is close to 100%.
All chemicals are pre-prepared. Every equipment is working at 100% efficiency. Test tubes are shiny new.
A biological sample is handed over to us, a lecturer pretends to be searching for something, and slowly whispers out the answer we were supposed to get. All students immediately write down the answer in a secretive place. I walk over towards the measuring balance. I cannot help notice a piece of paper near the equipment, which contains exact values of chemicals to be weiged. That makes my job even easier. My confidence is reaching greater heights.
Lecturers pay frequent visits to our place, ensuring we write perfect answers, plot perfect graphs, and perfom perfect calculations.
Time is running out. I still need to prepare a bacterial slide. I walk over to a nearby microscope. Lying in a not-so prominent position is an already prepared bacterial slide. I almost overlooked it. But our lecturers were there too. One of them bounced up his eyeballs, and gave a pointed look towards the slide and then at me. I got the message. The slide was beautifully made. The externals were impressed.
The final question was to prepare a solution of specific pH (don't bother about the technical aspects, pH is just a numerical value). 7.4 was what I required. As I dipped the electrode into the solution, it showed 7.3. I was impressed. Our lecturer was not. As usual, he came towards me searching for something (his wife probably). Putting his hand behind the equipment, he turned a screw, and the meter magically rolled over to 7.4. I look at our lecturer stunned. He smiles. I smile.
I've now done everything, except answering a few questions. I scratch my head with a pencil, and look around. The walls showed fungal growth. It needs paint. But what do I see here ?? Posters of Biotechnology containing whatever I'm supposed to write now. I turn back, and find my lecturer, with folded arms, winking. My answer sheet is full of answers. Its viva time now. The externals ask "Which is your favourite subject ?" I say "Biotechnology"... proudly. After a few routine questions, I'm done for the day. As I leave the room, our lecturer comes over and says "Suhas... you have scored 90%". How does he know ?? He says he sneaked behind the externals and found out everyone's marks. I'm shell-shocked. As I leave, the lecturer shouts out, "Suhas, come prepared for your next practicals". "Yeah, right, you too sir" I say and zoom off !!!