Well, it could be thought of as a glitch. I came on to USB, no prank. The comp shut down, so I came back, and theres prank! I have not pulled any pranks, but the sixth teachers did.
My teacher made all of us think we going to Chourus(None of us like it. EWe have to sing the wrost stuff). Then, when we got outside she said it was a joke. Now, the other teahcer, best prank all day:
She gave her class a 100 question "test". They had not learnned the stuff yet, and she said it was worth like 100 points. Then, when they were collected, she took them, and made it look like she marked ALL answers wrong. Then, she ripped all of them up. And a little later, yelled out "April Fools!"