The last prank I pulled off was at my old school site on April Fool's Day back in 2007. I faked a hangover when I showed up to work (complete with the "man, last night was not a good idea, oh man my head" spiel), called my supervisor to the computer lab constantly throughout the day and basically hinted that my class was going apeshit and I was about to lose it. The kids and I had been planning this for weeks.
Toward the end of the day, I basically instructed my class to REALLY go apeshit in the computer lab. They threw chairs on the floor, started running all over the place, one of them was rolling around on his skateboard and doing ollies off a desk. It was fucking anarchy in there. I sent one of my students running to the office to ask for our victim and he ran back to the lab in a hurry. As soon as he walked in, he found me with my head down at my desk faking a nap and he yelled at the top of his lungs, "EVERYONE SIT DOWN AND BE QUIET!!!". He then stepped outside and I heard over the walkie talkie that he was going the BITCH ROUTE and calling for backup: In the form of BOTH our school's principal and vice-principal. This was not as intended because we were only trying to prank my supervisor.
The kids panicked! They thought he was onto us and I assured them that there was no way he could have known. So all three come in and just before the principal spoke a word, all the kids yelled out "APRIL FOOOOOOOOOOOOL!!!!!!!!" They all turned around and walked out the door with a smile on their face and we claimed sweet sweet victory and toasted with sodas to collateral damage. To this day, no one has ever pulled a prank like that on all three of the top dogs in the school, either simultaneously or individually on the same day.
I miss my kids.
Jam it back in, in the dark.