What is your favorite military prank?

Squad leader told a private to go ask the Chief for the keys to the drop zone.

Flash banging a blue falcon in the crapper - frag out!

So after this one I received a MAJOR ass chewing - this was in the 90’s so it was legal back then.
Picture a cold autumn morning at Ft Knox, KY we are out conducting tank gunnery at Cedar Creek range (total bowling alley) - it is a foggy morning and therefore we cannot start until the fog lifts - so we are all lined up on the firing line waiting for this to happen, leaning back on the tanks relaxing. Up walks a SPC (career E-4) asking why we are not shooting and will this result in staying out in the field longer blah blah - so I tell him that we are fogged in and can’t shoot till it lifts or till someone gets off their ass and goes down and turns on the Range Fans. Told him we can’t do it cuz we are having to stay with the tanks but if he wanted to walk down and turn in the range fans to blow out the fog that would be great! So off he goes to find the range fan down range and flip the switch we described to him. We are cracking up as he goes running down range road and here comes the 1SG flying up in his HUMVEE from the tower - “Whi the hell is down range” so we tell him - to which he tells us that since we can’t do direct fire on our range, they are letting the artillery out fires onto our range - and he has to go rescue this kid as the artillery is a couple minutes from impact.
Think in the end that is why the 1SG wasn’t happy with us - he had to go get him

I was the victim of one but quickly realized it on my way to the motor pool. How many have gone for some 'ST Ones', Grid Squares, and Blinker fluid?

Did a high school JROTC camp and among the instructors was a SF SFC.He told us of training missions at night in areas where there were steep drop-offs and cliffs. Being in the front of the squad line, he sneakily took off his helmet, with its glowing CAT eyes on the back, and kinda walked it out to arms distance before dropping it on the ground. Person behind him, "Sergeant? Sergeant!? Guys, Sergeant ________ just fell off a cliff!"

Same summer camp, few years earlier, different instructors. We were teaching the kids terrain recognition. Have the one with the map go stand next to a tree, and one stand near him. Cadet without a map is instructed to shake the tree as hard as he can for a few seconds, and to stop suddenly. Immediately, the instructor asked map-holder if he can see the shaking tree anywhere on the map.......

This was one of my masterpieces.

When LTs feel a new 2LT needs an attitude adjustment. Brigade or battalion function in dress blues. Tell 2LT that he can ride with a couple of other LTs who will pick him up. When the LTs show up to pick him up, they are dressed in greens instead of blues. They look at the 2LT in blues with dismay and go " didn't you get the word on the change? " Then they tell the 2LT that they have to go so they won't be late, and he better change into his greens and drive over by himself. The older LTs then leave and change into their blues enroute to Oclub. The 2LT arrives fashionably late, and is the only one in his greens, and newbie 2LT jokes commence.

I guess that one is obsolete now that everyone wears blues all the time.

Axe Qual. Nothing like watching a guy chop up his cover while blindfolded thinking that he's splitting a quarter as a rite of passage...unless it's Pvt Broom hacking up Cpl Jackowitz's cover by mistake.

I'm not too proud to admit I was that private jumping up and down testing the supension on a 5 ton, and also that private that was looking for blinker fluid to replace the fluid that leaked out when we took a HMMWV turn indicator apart (it had filled up with rain water). I did wise up though and didnt fall for squelch grease to connect the hand sets to the SINCGARS, or the hammer and bradley armor looking for rust spots!

I sent a soldier to get an ID10T form from PLT SGT. The PLT SGT told him to get the hell out of his office and to tell me to come see him. I go up there and he is just giving me a pissed off look tell I shut the door and start laughing his ass off