14 Shady Habits That Reveal Someone Can’t Be Trusted

14 Shady Habits That Reveal Someone Can’t Be Trusted

Some people wear their red flags like a badge. They’ll smile in your face, charm the room, and still leave a trail of chaos behind them. The worst part? They often don’t even think they’re being shady—they’ve just normalized these manipulative behaviors as part of their game. But when you know what to look for, the mask slips fast.

These aren’t just quirks—they’re the subtle (and sometimes not-so-subtle) habits that tell you someone’s playing by their own set of rules, and you’re just collateral damage. Spot them early, and you’ll save yourself the pain of figuring it out the hard way.

1. They’re Overly Vague About Their Plans And Whereabouts

They never give you a straight answer about where they’re going, who they’re with, or what they’re doing. Every response is a hazy cloud of half-truths and deflections. It’s not that they’re private—they’re evasive. And there’s a difference.

When someone’s trustworthy, they don’t leave you feeling like you’re pulling teeth just to get basic info. That constant vagueness is a sign they’re hiding something. Research published in the Journal of Social and Personal Relationships explains that evasive behavior, such as being overly vague about one’s plans and whereabouts, is a common indicator of distrust and can signal that someone is hiding information or being deceptive.

2. They Gossip About Everyone So They’ll Gossip About You

If they’re telling you all the messy details about other people’s lives, guess what? Your business is on the menu when you’re not around. The habit of spilling secrets isn’t selective—it’s who they are.

You can tell yourself they’d never do that to me, but they absolutely will. Gossipers don’t have loyalty—they have an audience.

3. They Always Shift Blame When Called Out

two male colleagues arguing

No matter what happens, it’s never their fault. They’ll twist the story, point fingers, and gaslight you into thinking you’re the one who overreacted. It’s a masterclass in deflection. As noted in a study published by the National Center for Biotechnology Information, blame-shifting is a common behavior where individuals avoid taking responsibility by blaming others for their failures.

Accountability? Never heard of it. If they can’t own their mess, they’ll never own their impact on your life either.

4. They “Forget” To Follow Through On Promises

Cropped shot of a young couple having an argument at home

They make grand promises, then conveniently “forget” to deliver. It’s a pattern, not a one-off. They’ll say whatever sounds good in the moment, but when it comes time to show up? Crickets.

People who can’t keep their word, especially when it counts, aren’t just flaky. They’re unreliable, and that’s a trust deal-breaker.

5. They Tell You What You Want To Hear

Shot of a young couple sitting in a cafe and working on a laptop

According to the research published on PubMed by David M. Buss and colleagues, charm is identified as one of the key tactics of manipulation that people use to influence others. This charm tactic is often employed to elicit certain behaviors by flattering or agreeing with others, rather than fostering genuine connection or truth.

You don’t get the truth from them—you get a curated performance. And that’s a dangerous foundation for any relationship.

6. They Conveniently “Forget” The Things That Make Them Look Bad

Woman drinking tea and reading a book at the veranda

Their memory is selective. They’ll recall every detail of their wins but mysteriously forget their shady behavior, the hurtful things they said, or the promises they broke. It’s not a flaw—it’s a tactic.

This kind of memory loss isn’t innocent. It’s a way of rewriting history to protect their image while you’re left holding the emotional fallout.

7. They Love To Stir Drama, Then Play Innocent

They’ll subtly drop a comment to stir the pot, then act shocked when things blow up. They thrive in chaos but never seem to take responsibility for creating it. It’s all Who, me? I’m just trying to help! Energy. As explained by Tutti Taygerly, the concept of the Drama Triangle—developed by psychologist Stephen Karpman—illustrates how people often play roles such as Victim, Persecutor, or Rescuer to stir drama while avoiding responsibility.

People who love drama but avoid accountability are poison. They’ll burn the house down and then hand you the match.

8. They Talk Themselves Up Constantly

They’re always selling a version of themselves that sounds a little too good to be true. They overhype their success, their connections, and their abilities. It’s all smoke and mirrors designed to impress.

The need to constantly self-promote is a red flag because it usually covers up insecurity, deception, or both. If someone’s the real deal, they don’t have to keep reminding you.

9. They React Aggressively When You Ask Questions

A simple Where were you? or What did you mean by that?Sets them off. They get defensive, flip the script, or accuse you of being paranoid. It’s an overreaction that feels wildly disproportionate.

This isn’t about boundaries—it’s about control. If basic curiosity triggers their rage, it’s because they don’t want you to see what’s behind the curtain.

10. They Keep You Guessing About How They Feel

Window, Discussion, Talking, Dating, Drinking

One day they’re warm, the next they’re cold. They breadcrumb you with just enough affection to keep you hooked, then pull back when you start to relax. It’s an emotional rollercoaster, and they’re the ones holding the controls.

This push-pull dynamic isn’t accidental—it’s a manipulation strategy. If someone keeps you guessing, it’s because they like you off-balance.

11. They Have A Habit Of “Borrowing” Things Without Asking

They take your stuff—your time, your energy, your actual belongings-and act like it’s no big deal. Maybe it’s your favorite book, a ride to the airport, or emotional labor they demand without reciprocation. The keyword here? Without asking.

Trustworthy people respect boundaries. If someone treats your resources like a free-for-all, they’re showing you exactly how little they value you.

12. They Play The Victim In Every Situation

Every story they tell paints them as the one who was wronged, misunderstood, or betrayed. It’s a pattern so consistent, you start wondering if they’ve ever made a mistake. Spoiler: they haven’t.

The victim’s narrative is their favorite escape hatch. It’s how they avoid responsibility while manipulating your empathy—and it’s a major trust red flag.

13. They Show Zero Accountability For Past Relationships

Ask about their exes, and it’s always They were crazy, They cheated, They were toxic. Never a hint of self-reflection. They’re always the innocent party, and somehow, every relationship ended in chaos.

This habit is a preview of how they’ll treat you. If they can’t own their side of the story, they’re not someone you can build a future with.

14. They Get Defensive About “Little” Lies

They’ll lie about small things—where they were, who they talked to, what they did—and when you catch them, they brush it off. It’s not a big deal, they’ll say. But it is.

If they lie when there’s no reason to, they’ll lie when the stakes are high. And once that trust is gone, it’s nearly impossible to get it back.

Danielle Sham is a lifestyle and personal finance writer who turned her own journey of cleaning up her finances and relationships into a passion for helping others do the same. After diving deep into the best advice out there and transforming her own life, she now creates clear, relatable content that empowers readers to make smarter choices. Whether tackling money habits or navigating personal growth, she breaks down complex topics into actionable, no-nonsense guidance.