Oh I used to do this sort of stuff all the time in middle and high school. But I've since outgrown
most of these. Let's see.
-In middle school I saw an open locker, took an alarm clock from a classroom, put it inside cranked it to tick for a few hours. I guess a teacher finally walked by there and flipped the ♥♥♥♥ out thinking it was a bomb. School called the bomb squad and we all got to go home early. Awesome.
-In high school for fun when I didn't feel like going to History id pull the fire alarms. Since there's so many crowded hallways I always got off spot free.
-Stole my dad's car when I was 14, went joyriding and crashed it into a tree. My dad was more impressed than mad that I managed to drive stick for 5 miles from the house before I hit a tree. Ty arcade machines I guess.
-Oh junior year in highschool me and some friends would ask out the most disgusting fattest girls we could find and tell them to dress up all fancy and meet us at various locations like a fancy dining establishment or the movies or something, and then not show up. Admittedly I sorta regret doing that since that's pretty low even for an ♥♥♥♥♥♥♥ like me. But it was funny at the time. Probably would apologize if I ever saw or recognized any of them. Assuming they didn't try to shoot me first.
-Stole the answer key to a bio exam in high school. Shockingly got 100% on that exam. Crazy huh.
-Sold a kid oregano saying it was weed for the bargain price of $70. Best $70 i've ever earned.
-In Java I snuck into the class early with a friend and we screencapped the screen with all the icons, made it the background and removed all the icons from the desktop and hid the toolbars. Watching people click on an icon and get super confused when nothing happen then get even more perplexed when they clicked on the toolbar only to have nothing happen was great.
-Senior prank was taking every desk out of the classrooms and stacking them into a huge pyramid in the quad.
-Told a friend as a prank that he should totally ask one of the hotter "popular" girls in high school to prom and that he totally did have a chance (I thought she'd say no and go with one of my teammates for sure). This unfortunately backfired because they're married now. Not much of a prank eh?
-In middle school skipped school to go see Star Wars Episode II. Got detention. Skipped that to go see a hockey game.
-Once for a football game me and a friend pretended to be too injured to play when we just wanted to play Mario Party at his house. Our team suffered one of it's biggest homecoming losses by a huge rival school because they suddenly had to sub in for starting QB and the #1 cornerback. Put a pretty big damper on homecoming lol.
There's more I'm probably forgetting.