Teaching My Brother-in-Law a Lesson: Was I Wrong to Lie About My Car's Engine?
AITA for pretending my car had engine issues to humble my boastful brother-in-law, leading to mixed reactions from family and Reddit users?
It started with a simple car loan, and it turned into a full-on family embarrassment. OP cherishes his sedan, not because it’s flashy, but because it’s carried him through everything. Meanwhile, his brother-in-law treats that same sedan like it’s a joke, constantly bragging about his sports car and cutting OP down for driving something “outdated.”
Then OP let him borrow the car for a business meeting, thinking it would be a normal favor. But when the brother-in-law got it back, he said the performance felt “off,” so OP seized the moment and lied. He claimed his own engine had been acting up and hinted that the brother-in-law must have pushed it too hard, like he couldn’t handle a “real” car.
Now the lie is out, the wife is mad, and the brother-in-law is embarrassed, leaving OP wondering if he actually taught a lesson or just blew up trust.
Original Post
I (28M) own a car that I really cherish. It's not a luxury car, just a regular sedan, but it's been with me through thick and thin.For background, my brother-in-law (32M) is someone who's always boasting about his fancy sports car, constantly trying to one-up everyone. He often belittles my car, saying it's outdated and boring, which really irks me.The other day, he asked to borrow my car for a day as he needed to attend a business meeting. I agreed but decided to have a little fun.When he returned the car, he mentioned that something felt off about its performance. Seizing the opportunity, I acted concerned, saying I had been experiencing engine issues lately and that he must have pushed it too hard, implying he wasn't skilled enough to handle a 'real' car like mine.It was all a bluff—my car is in perfect condition. I just wanted to knock him down a peg and show him that it's not about the car you drive but how you treat others.However, my wife (his sister) found out and thinks I was being petty and unnecessarily deceitful.Now, my brother-in-law is embarrassed, and my wife is upset with me. I thought I was just teaching him a lesson in humility, but maybe I went about it the wrong way.So, AITA?The incident involving the car engine deception raises important questions about the dynamics of relationships, particularly between family members. The user’s decision to mislead his brother-in-law about the state of his sedan appears to be a misguided attempt to assert control and teach humility. However, this action reveals a deeper undercurrent of frustration and dissatisfaction that can fester in familial bonds.
Manipulation, even when intended as a lesson, can erode trust and lead to significant rifts. The brother-in-law's ongoing criticism of the user's beloved vehicle suggests a lack of respect for personal choices, which may have prompted this retaliatory tactic. Yet, rather than fostering understanding, such deceit is likely to contribute to a cycle of mistrust that undermines the very foundation of their relationship.
Comment from u/PizzaLover76

Comment from u/soccer_mom_99

OP’s sedan didn’t change, but his brother-in-law’s attitude sure did, and that’s what made the “engine issues” lie feel tempting.
Healthy relationships rely on open communication rather than deceitful tactics.
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Comment from u/bookworm_11
The user’s decision to lie about their car's engine, ostensibly to teach a lesson in humility, raises questions about the effectiveness of such an approach. While the intention may have been to address the brother-in-law's repeated criticisms of the sedan, this tactic risks undermining trust. Open dialogue, rather than deception, typically fosters a more honest connection and can prevent the misunderstandings that often arise from hidden motives.
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The business meeting car ride was supposed to be a favor, yet the second the brother-in-law mentioned performance, OP went straight for the petty comeback.
Research indicates that individuals who practice honesty in their relationships report greater satisfaction and emotional intimacy.
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It also mirrors the woman who babysat for $100 a month, then told her brother to find new childcare.
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Once OP’s wife found out, the whole situation shifted from “teaching humility” to “why are you lying to family,” fast.
Now that the brother-in-law is embarrassed and his sister is upset, OP is stuck asking if he crossed a line just to knock him down.</p>
The situation presented in the Reddit thread highlights the complexities of honesty within familial relationships.
The car was fine, but the family dinner might not be.
For another household fight, read about buying a different sausage brand to save time and starting a debate at home.