Bad people — AKA those who don’t have your best interests at heart — can give off some mighty weird vibes. It can be so strong, in fact, that your intuition kicks in and tells you to GTFO. “If something feels off or if a ‘friend’ makes you feel uncomfortable, trust your gut… Intuition is a powerful force that should never be ignored,” said Michele Corvi on HuffingtonPost.com. I couldn’t agree more.

3. They Are Mean To Animals

Anyone who is mean to animals sucks. There’s no doubt about that. But did you know that it’s almost always a predictor of deeper issues? “Since the 1970s, research has consistently reported childhood cruelty to animals as the first warning sign of later delinquency, violence, and criminal behavior,” noted Joni E. Johnston, Psy.D., on Psychology Today. Whether the cruelty happened 30 years ago, or five minutes ago, take it as a clear sign that this person is bad news.

4. They Use Humor To Insult You

There’s nothing funny about being a complete jerk, and yet jerks tend to use humor to knock others down. Think of the classic movie bully who gets the whole school laughing by making someone the brunt of a joke. Not cool.

5. They Lie All The Time

We all tell little white lies — about why we’re late to work, or why we’re “too busy” to hang out. It’s usually no big deal. But evil types take their lying to the next level, and even engage in some expert lying tactics. They might, for example, be super truthful as a way of building people’s trust. Then they’ll unleash some lies when trying to get their way, according to Jeff Wise on Psychology Today. How incredibly manipulative.

6. They Are Manipulative

Speaking of which, manipulation is another good sign that someone ain’t great. And again, these people are very good at what they do. “Manipulators often voice assumptions about your intentions or beliefs and then react to them as if they were true in order to justify their feelings or actions, all the while denying what you say in the conversation,” said Darlene Lancer, JD, MFT, on PsychCentral.com. See what I mean? Someone who stoops to those levels is obviously not worth being around.

7. They Belittle Your Fears

Keep an eye out for people who turn your worries into a joke. “If you need a little comfort because you’re worried about getting a job or think your best friend is mad at you, [they] shouldn’t be mocking your concerns,” said Elise Williams on EliteDaily.com. And yet — you guessed it — crappy people probably will.

8. They Don’t Feel Guilt Or Remorse

Let’s say you were having a bad day and took it out on your partner. Maybe you were kind of cranky, or didn’t feel like hearing about their problems. This happens, and is usually followed up by some pretty intense guilt, right? Well, with cold-hearted people, the remorse never comes. “Their brains simply lack the circuitry to process such emotions,” wrote Mike Adams on NaturalNews.com. “This allows them to betray people, threaten people, or harm people without giving it a second thought.” Yikes.

9. They Have A Total Lack Of Empathy

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