What's a dead giveaway that someone is a bad person?

When they do not return the grocery cart to the cart corral.

I doubt you can judge someone as bad based off that

EDIT: I'm gonna go with better terms here: Not responsible enough and ignorant, I still don't believe someone can be considered bad as a person for this.
- There are two main reasons you wouldn't return carts to a cart return location:
  
  Fuck them people
  
  My time is worth more than this
  
  At the very least the person is inconsiderate, and worst a complete psychopath. Both are not great signs, and all the ones between are also not positive aspects.
  
  You'd think something that small wouldn't be much of an indication on a person's overall nature, but it's nearly always the little things that add up to the whole thing.
- OP doesn’t put his cart back! Shame!
- I find the people who judge others based on cart return status are the real assholes.
- It's actually a great indicator as to their view of the social contract and obligations to others.
- Cart Narcs demonstrates that you can lol
- There's two possible scenarios
  
  you think your time is more valuable than others, thus making you an asshole
  
  you simply don't give a fuck about inconveniencing others, again making you an asshole
- I mean.. you asked people for red flags that someone is a bad person, not 'what actions make someone a bad person'.
  
  I think they're right and Cart Narc did all the field research for us.
  
  Check it out
I'd say it's conditional. At a certain point, it's on the business themselves. For example, a giant parking lot with one or two cart returns only, in a front corner.

A massive sprawling Walmart parking lot with only one return, and I had to park really far away, and it's super busy and trying to get the cart to the return requires going through multiple rows? I'm a goodie two shoes who will clean up after others, and tries to improve places... but I've got limits with time, effort, and desire to deal with crowds of people in parking lots.

If they have good placement though, then yes, it's absolutely on the individual.
- Unless you have a medical reason for not being able to walk to the front to return it, you're still an asshole if you don't.
- This is the kind of balanced, nuanced take that will get you absolutely murderlated with downvotes.
This is such a strange phenomenon to me. In all the countries I've lived in, all but a few select stores have a dongle on each cart that takes a coin to unlock it from the chain of other carts. It's perhaps the cost of a back of toilet paper, but that seems to be sufficient for it to be exceedingly rare to see an abandoned cart. One can only imagine that any such carts are quick prey for enterprising teens looking for a quick boost to their candy fund.
Oh man. I live not too far from a Walmart (about 3 miles by car, but 1 by foot with shortcuts). Recently, someone in my neighborhood has started walking to Walmart, filling their cart, then just bringing the cart home with them and abandoning it on the access road in our neighborhood. We are 6 carts deep and my anger towards the perpetrator grows every day.

Mean to animals

Reminder that eating animals is unnecessary and cruel
- don't worry, people don't eat penguins except in extreme circumstances. even if you were a penguin, you'd be pretty much safe.

"You can easily judge a person's character by how they treats those who can do nothing for them."

... or something really close to that. I'm too lazy to look up the actual quote right now.

Everyone can be a friend when it's easy and convenient. It's during the bad times, when they suffer and it's not so easy to keep cool, that their true values or lack of come to light.

Haha yup, that's when the true color comes out!

If they're mean to waiters, cashiers, janitors, etc.

Additionally, whether they think someone has money, influential friends, etc determines whether or not they treat a person well.

Being unable to admit they are wrong or don't know something. I feel like it's one of those traits that snowballs into someone coming off as obnoxious and elitist

God, reading all these comments while baked in a hammock was a trip. I highly recommend the cart saga.

I'd say it's when they get angry when you tell them the impact their behavior is having on you, instead of actually trying to have a discussion and sort the problem out.

Or they get angry with you for enforcing your boundries.

Or they gaslight you about your boundaries..
- My personal favorite is when they gaslight you about whose “fault” it was. Failing to recognize that boundaries were only enforced because of decisions they made.

Not to bring Trump into everything, but yeah... Trump supporters. Bonus level of shittiness if they have a maga hat.

They enjoy the suffering of others.

Yeah, that's really more cruel
I mean there are degrees to that. I mean sure watching people get beheaded/beat to shit (for no reason) then yeah I think that can be a clear sign. Lets be fair and say much of comedy is based on the idea of laughing at the suffering of others. There are many forms of comedy and typically the target of who is "suffering" changes. Like I just don't think if people watched something like Jackass makes them a "bad" person.

How often and long they twirl their mustache.

This is not a dead giveaway as it will take some time and observations but, how often they react to adversity by blaming other people.

Reminder, if everywhere you go smells like dog doo, maybe check under your shoe.

How often and long they twirl their mustache.

Stops idly twirling mustache

Can you, uh... elaborate on that?

"I call them how I see them."

"I'm just brutally honest."

"I'm just telling it like it is."

These phrases are used exclusively by rude, obnoxious, condescending assholes trying to justify being shitty to other people for no reason.

They don't like animals.

Folks who opt not to clean up after their dogs. Particularly in public areas.

How they treat their waitress at a restaurant. Big red flag.

An unwillingness to admit fault, and/or learn from one's mistakes. It's the biggest and reddest of red flags.

Extreme racism.

Do we really need the "extreme" qualifier here? Lol, like there's inherent bias, then there's racism.

When their opinions are... very extreme.

Earlier today, someone told me that they'd wish someone were no longer living if they mentioned liking a certain type of pizza. It definitely wasn't said in a joking tone either (not that I'd really want to be around someone who made that type of "joke" in the first place) - that was a pretty obvious indicator that they were a bad person in my book.

It was done under the guise of "I don't like to sugarcoat things" 🙄