What's The Meanest Practical Joke You've Ever Played?

I can't really remember

It wasn't my idea, it was actually pretty cruel as well but I decided to go along with it...there was this very naive girl in our class who will literally believe anything she was told, and some of the other girls decided to take advantage of that...So after me and a couple of my friends finished helping our Physics teacher with her lunchtime Science Club, they put us in dead make-up, and then they went off and told her me and the friends who also helped with the Science Club died of mercury poisoning...

Are we talking,family meanness,or complete stranger meanness?There is a difference,I'll kick a cousins' ass,faster than a strangers'!But I'm sorry for the stranger,cause they didn't know me,and what my M.O.s are!

Somebody put hot stuff in my Athletic supporter

I've never really played a mean prank on anyone.
Unless you count the time I hid my brother's Playboys in our dad's office.
Unfortunately, dad found them before he did.
Ahem.... Woops!
He got "the talk" after that one.
hee hee ;)
As a way of getting back at me, my brother dumped a bunch of fine powdered snow down the back of my sweater when I was getting some stuff out of the trunk of our mom's car.
I almost killed him for that one.
#$%& that was cold!!

Not actually a mean one...but one time when I was a teen; my best friend, my boyfriend and I taught some of our gossipy friends a lesson by making up a guy that I was supposedly cheating on him with. My boyfriend was out of town, and the news travelled fast...within five hours of starting it, the rumor was back to him. And by the time he was told one of them had actually seen the guy at my house. Funny enough the guy didn't exist, we made up a discription of him from some rock mags I had around the house, lol. And when my friend gave a couple of the gossips a ride, he "spilled the beans" to them.

I had an ex..who moved his new love into my home without telling me we were through!! He had the nerve to expect me to stay..take care of his children..not mine..wash clothes ..cook meals..tend to his needs if he felt like a change..and continue to pay for the vacation plan and my haf of the rent! So when I moved out..I had all the utilities including all phones cell included cut off..they were in my name..the Bills forwarded to an unknown to him location making it near impossible for him to pay the balance to get it turned back on! Of course I had it switched into her name just before I left!!!

That doesn't sound like a practical joke. That sounds brilliant!!!

When I was around 11, I put a frog into my little sister shoe, when she went to put them on, the frog jumped out; she was very scared & began crying and screaming, I felt very bad afterward.

Ah, but I'll bet you laugh like crazy about it now. Good one!

Yes I did, I time I thought about it ha, ha, ha :o) !

I tricked someone when we were 12 that there was a monster in the pipe. Then when he didn't believe me, I walked and round the bound then used my vocalised noises I was about to do back then and he heard the sound of an angry monster and the sound of me being attacked and painfully dying. My mate said he ran away really fast.

well, in high school I electrocuted the teacher....before anybody gets upset...there were no amps and no permanent damage was done....but he did jump from the seat!!! :)

Awesome!

My 9th grade year was in a very small school. There were only 8 of us in the class. ... later in college, a good friend started dating one of my old classmates. Catch was, the classmate didn't know I knew her. So I started feeding her information about him and his past. For several months, we had him thinking she was psychic

.

I put lipstick on my little brother whle he was sleeping then it wouldn't wash off the next day...

I don't remember! It was a long time ago. I was just a kid.

I once tried to fake my own death at my great-grandfather's funeral. What can I say? I had problems back then.

You should watch Harold and Maude. lol