That's a really great topic to discuss for people like me. Let me go back to my school days.
The Xth Board result was declared. By the grace of Almighty God and due to continuous and unending efforts by my parents and teachers, I cleared it with loads of marks (which I had never even dreamt). Thereafter, I took admission in the same old school; of course, in the Science stream.
We (my friends and myself) started thinking ourselves some hero or some superhuman by virtue of our marks in Xth Board. In addition, we started thinking our old school our personal property. Many of us were fascinated by the Chemistry lab of the school and carried out many mischiefs in that lab.
During those days, I started reading the famous Byomkesh Bakshi detective stories and novels. In one such story, I read about 'vanishing ink' (disappearing ink). Its potential attracted me immensely. My interest grew manifold when I came to know from one of my cousins who was studying M.Sc. (Chemistry) at that time, that it would be very easy to make vanishing ink in school-level Chemistry lab.
I immediately informed my closest friend Susmit about this vanishing ink and he immediately became a willing partner. Then, in a Chemistry practical class, during the absence of our Chemistry teacher Ajay-babu, and with kind guidance of Sanatan-da (Chemistry lab-attendant), Susmit and I made a very good amount of vanishing ink using vinegar, thymolphthalein and NaOH solution. I still vividly remember that the vanishing ink was deep blue in colour.
But then the problem started. When Susmit and I were loudly congratulating each other after the success of our personal experiment, another friend of ours, Sushanta, strongly objected to our shouting. Susmit and I became very angry and put the entire vanishing ink kept in a medium-sized beaker on the white shirt of Sushanta. The white school-uniform of Sushanta became deep blue.
Sushanta violently attacked both of us. Susmit and I started defending. Hearing the commotion, both Ajay-babu and Sanatan-da returned. They quickly understood what had happened. They told Sushanta that his shirt will again be white very soon. But, at the same time, they asked Susmit and me to meet Ajay-babu with our guardians the next day.
What my father did (as also Susmit's father) after hearing our activities in the Chem lab, should be kept secret from the great members of ISC.
[P.S.: Anyone who wants to play mischief with vanishing ink, may contact Partha K. for guidance. Excellent result guaranteed.]
(a) Those who have forgotten Noakhali, how can they protest Sandeshkhali?
(b) Have no fear of perfection - you'll never reach it. ---------- Salvador Dali
