Cracker outside classroom in my School

I studied in a government school. When I was studying in my Tenth standard (SSLC), we used to have special classes after school ends. We used to have a break for 15 minutes before the special class starts. That was Deepavali seasons, easily get crackers from any shop.

One day two of my friends bought a cracker (which gives more sound) and long lighter. They tied the cracker at the end of lighter, So that it can crack after 15mins and kept it near the class room window. They fired the lighter before 5 minutes class starts. All the boys knew about this cracker. But girls and staff did not aware of this.

Our staff came inside the class room and started writing in the board. As we expected after 10 minutes the bomb got cracked and smoke came inside the classroom. Our staff put down the book and marker from his hand because of this unexpected shock. All girls also were shocked. Immediately our friends went out to search the person who kept the cracker there. Obviously we knew that nobody will be there .

We have named that staff as “Don’t talk”. He used to say this all times.