How we were tricked 

This day always reminds me of the best April fool I have ever experienced. It was back in 2009 when I was in class six. In my primary school.
Our class teacher was an English teacher. Just before the April came, we have had already finished reading and explaining about the story "spider web". In which the students try to fool their teacher but they land up being fooled. We also wanted to fool our class teacher with some practical jokes. we were certainly prepared ourselves not to be fooled by our class teacher like the Spider web.

All the class mates came up with different type of plans to fool our sir. Some wanted to tell sir that there is chalk dust in his gho and some wants to try for shoelace joke so we try shout out "April fool!", many other ideas popped up. Certainly we had many ideas that would supplement eachother's idea if one gets failed.
The First Class started and our class teacher came in, but this time he does not seem to be in mid to play pranks, we were assuming that maybe he was fooled by someone else so badly that his jolly mood had to disappear.
Anyway, we tried our April Fools pranks on him but non of them succeeded.  He just smiled and says I know this is April Fools trick. I think all our mates got hopeless to try on him.
Then the normal class resumed and attendance was taken then we were ready to open the next story.
Then sir announced us that we were going to have class outside since it was prescribed in the syllabus.
He said we are to carry the chair on our head and go outside the class silently.
I think we were literally like army of ants walking straight in line. We thought this would never be an April fool.  When we reached to the middle of the assembly ground, our classteacher was shouting from the back swaying his hand "wai come back! It's April Fools day"
Our innocent walk suddenly changed and ran back to class like defeated all saying "awoo! Sir"
That was the mass April Fools joke I ever experienced. It is impossible to fool a teacher neither in a story nor in real.

Still I hope to fool you one day Sir !