Here are the best results.
That way, anyone who drove by would know exactly what kind of person lived there."
Kate Alexandra Winder, Facebook
2.

She was quite surprised to receive a zero on the final, whereas I got an A."
bechus
3.
I connected it to a mouse, which I kept in my drawer.

I’d often open my drawer and mess around with his mouse for fun.
I kept it going for, like, two months."
Anonymous
4.

“My ex cheated on me with a married man.
Petty, but it still makes me laugh.”
redman2532
5.

She was absent when we got to choose our prizes.
The look on her face when she saw that hideous thing gave me so much satisfaction.
That was 25 years ago, and its still one of my proudest petty moments."

tiffanytrainers
6.
“I had a boss about eight years ago whom I hated.
She was the fakest and most entitled person I had ever met.

The smell was of buttered popcorn.
She complained almost every day.
Its the sweetest revenge Ive ever tasted.”

weshric
7.
My friend finally decided to put a stop to it.
He then filled that puppy up and made a really pretty display.

Our jerk neighbor broke the axle of his car when he hit that pumpkin.
He couldn’t drive away, so my friend then got his car towed."
cuddlenazimonstr
8.

“My company has a password policy that locks your account after three incorrect attempts.
That way they’ll have to deal with our IT team to unlock their account each time.”
nicky4pin
9.
I’d never even said two words to her I gave her no reason to do it.
They immediately took back the new car they had just bought her and returned it to the dealership."
I went outside, and a whole bunch of women were smoking.
I offered it to a woman in return for a cigarette, and she said okay.
I handed it to her, and then she wouldnt give me the cigarette!
She said, ‘You shouldnt be so trusting.’
I went up to replace a computer and saw the same women.
She was waiting in line for a job interview.
I went up to the person who was conducting the interviews and told them the story.
She didnt get the job."
trivialsublime
11.
“Back in the early ’90s, supermarket cashiers had to jot down every price in by hand.
I looked at the cashier, and he rolled his eyes and got to work.
‘You’re good,’ said the cashier.
‘I put your soda on her tab.’
That felt good.”
irishzombieman
12.
“My ex-boyfriend used to always eat my food.
And then he’d take a bite before I could even touch it.
One night we were drunk and went to 7-Eleven.
He got one of their blueberry pies.
He opened it when we got home, and I said, ‘Let me have a little bite.’
I shoved the entire thing into my mouth, and he looked like he was going to cry.”
poniesftw
13.
He was colorblind to reds and pinks.
He also insisted that I do his laundry because I ‘was better at it.’
So, I took all of his white shirts and washed them with a single red shirt of mine.
He couldnt differentiate between the white and the light pink.
He probably deserved worse."
Tessa Meeks-Guthrie, Facebook
14.
“I had a neighbor who never picked up their dog’s poop while on walks.
The dog would always poop on my side of the yard, right next to my doorstep.
I nicely told my neighbor several times to pick it up, but she refused.
She moved out a week later.”
Mercy Antony, Facebook
15.
“At my old job, someone was opening my pay stubs every week in the interoffice mail stack.
I knew who it was, but I couldn’t prove it.
I simply gave her a knowing look.
None of my things were ever touched again.”
mcape94
16.
“When I was in kindergarten, I asked my teacher if I could go to the bathroom.
For the rest of the year, I got to go to the bathroom whenever I wanted.”
To get my petty revenge, I slept with her sister and her mom on separate occasions."
bearsbloody
Submissions have been edited for length and clarity.