April fool!

i'm currently teaching my sec 3 students both pure bio and pure chem. on Wednesday, co-incidentally, i had chem after bio. Bio class is in the lab while chem class is in the classroom. 

After the bio class, some students stayed back and asked me questions. i was delighted to see their enthusiasm in knowing more about enzymes. i answered almost all the question. i asked them to go back to class as i was supposed to enter their class for chem. after packing up, i rushed to the class. and to my surprise, it was not my students sitting in the class. It was the correct class with different students!!

The whole class played a prank on me. well, after sometime, i asked the class to go back. i asked them to tell my class students that i was very angry. hehe :P

when my students came back from the other class, i did not smile. they were told that i was very angry. i started the class straight away and i could see the shock in my students' eyes. i continued and they were very quiet. and to add to the effect, i slammed the door. :D well, i wonder who got fooled!!