Proudly Excluding 

"Inviting everyone in the friend group to an event and excluding just one friend then proceeding to talk about how much fun they're going to have at said event in front of the person that was purposely excluded, in front of everybody."

"Happened today and thought it was pretty rude."

-- TDiddy_

Unfettered Rascals

" Parents who let their children run rampant anywhere. I've seen parents watch as their kid pops their fingers through every package of meat at the grocery store and do nothing...."

"Parents who let their kids kick a strangers shoe or other belongings."

"Letting the kids spit on windows and rub it with their hands. Letting them run around the store, playing with anything and everything and leaving a mess for others to clean and the parents literally just ignore it!!!"

"I never understood that. They really are your obligation, not the store associate who's unlucky enough to be working the shift you happen to stroll in during."

"Be a parent!!! Bad kids can turn into shi**y people."

-- Maliagirl1314

A Captive Audience

"Blasting music on the bus, absolute tw*ts" -- BigBadKYDO

"Yeah absolutely, I hate those kind of people, no one wants to listen to your shi**y music especially on a bus on the way to work or something" -- Orenge01

"People who bring their speakers with them on hikes and blast them out loud for every animal and people on the trail to hear...-_-." -- banhsauce

Grocery Store Faux Pas

"Standing in the middle of the aisle at a grocery store. Not returning the cart." -- bigboywords

"When grocery shoppers leave their carts in the middle of the aisle instead of pulling over." -- Sobemiki

"The grocery store is a cesspool for inconsiderate people. Idk why this brings out the worst in humans."

"People who leave their cart in the middle of the parking lot, people who dead stop to turn around without looking and crash into someone else's cart, people who exit an isle into the main isle without stopping and crash into someone else's cart..."

"...people who spend an absurd amount of time looking at a particular meat section so everyone else has to wait, people who bring an entire cart full of food to the express lane, people who park in the middle of the driving lane and block traffic because the close spots are taken up."

"I could go on all day about how much I hate grocery shopping lol." -- Dopekick

Obstructions 

"When they walk into an elevator before you have a chance to get off. Same w buses and subways." -- guyuteharpua

"Some girl did this in a building I was in once and I said 'You know it's polite to wait for people to get off before you barge on' and she just screams 'I know!' " -- jessflyc

"You would absolutely love Japan. I have never seen such considerate people when it comes to mass transportation." -- Castianna

Free Transportation

"When you offer your time and money to drive someone and they don't thank you for the ride." -- mishmash_iam_trash

"When you give someone a ride and they leave their empty soda can or coffee cup in your cupholder." -- kindcrow

"When you give someone a ride and they complain about it" -- danure

One Man's Trash is Another's Fury

"Littering" -- Regularjay69

"People who leave their litter and uneaten food all over fast food restaurant tables, and the floor area." -- ofbalance

"Hung out with a co-worker once and he threw all his garbage out the window of his car onto the street. Never hung out with him again." -- OmManiPadmeHuumm

Taking Service for Granted

"Being an a**hole to the waiter or waitress." -- lhuthien

"Yelling at retail workers. Most recently about wearing masks or putting hand sanitizer on. It takes little to no effort and people lose their minds over it" -- Klaus369

"Not saying "Thank You" to stuff like someone holding a door open for them or a waiter/waitress refilling their drink" -- Profanity_TX

"People who click their fingers at waiting or bar staff" -- GinAndBareIt92

PIPE DOWN

"Talking over people. If someone is talking stfu and listen, when they're finished you can tell your shi**y story, not halfway through someone else's." -- Its-my-d*ck-in-a-box

"Interrupting mid sentence. I know I'm guilty at times, it makes me feel like trash" -- HypnotizedMeg

"Speaking over others" -- jjstgo

Real Time Rudeness

"It's currently 10pm and my parents have decided that watching a movie at max volume with their sound bar seemingly set to max bass is an ok thing to do, in an apartment that has two families on either side one of which has a one year old"

"So I'd say that"

-- Shinichi-Migi