“He was banned, and now he’s also signed up for 100+ junk emails every 30 seconds for the rest of his life.”

As a Senior Staff Writer at BuzzFeed, I cover real-life stories that explore relationships, lifestyle (including travel and beauty), and the internet's most fascinating trends.

Note: Some responses were pulled from this Reddit thread.

"Every day at 7 a.m., I put the TV against the wall and played Tweenies at full blast all day until evening. After three days, the students were successfully sleep-trained and the nighttime noise stopped."

"I had bought the fridge for the house, so I didn’t let them know I was moving out until the day of the move. I came home early (when no one would be at the house), took all their food out of the fridge, put it on the counter, grabbed my things, and moved out. I texted them to let them know about the situation only when I was fully settled in the new house."

"After a few more times of 'framing' my brother as a bed-wetter, he completely stopped using my embarrassing problem as entertainment."

"They asked if they were a bad batch or maybe the bakery missed an ingredient or two in the dough. I waited until they tried to eat more than three each...then told them they were dog treats. They never touched my cookies again."

"If he had even once bothered to crack the text, he would have figured it out, but that apparently would have been too much effort for him. He retook that class."

"On the third day, I came up with a plan. I put habanero cheese on my sandwich and then doused it all in ghost pepper sauce — it was everywhere, but luckily, it didn't smell spicy. I get to study hall...leave my trap sandwich on my desk, and get up to use the restroom. This time, I take as long as I can, and end up wandering the halls of the school. I did this because...only one person was allowed to leave the class at a time, even for water. After about 10 minutes, I come back to class to be greeted by the sandwich thief, crying hysterically with a bright red face, waiting for the hall pass. He was in the bathroom for the rest of the day."

"I put it under her bed, and it took a few days to 'work,' so I completely forgot about it — until one night, I woke up to my two sisters whispering. It had popped in the middle of the night, and she thought there was a rat under her bed."

"Well, I don't like being sworn at by strangers, so I decided to buy the entire store's worth of coconut milk and cream — about £30 worth of pure pettiness. I have no regrets."

"He then gave me a sob story about how he 'mourns his marriage ending,' which I laughed off again and said that it was his own doing and to also thank the mistress for her help. He then blocked my phone. It was the most petty thing I’ve ever done, but well worth the effort!"

"I said something dumb like, 'Oh wow, did someone change your chair? So weird. I wonder who did that.' And she never adjusted my chair again."

"The guy broke the axle of his shotty car when he hit that pumpkin — couldn't even drive away. My friend had his car towed away, too."

"Wish I could say they toned down their parties, but they didn't, and they eventually got evicted."

Note: Some responses have been edited for length and/or clarity.