A job-seeker’s unfortunate commute to his interview should serve as a cautionary tale: be careful what you say to strangers, lest you make an enemy of a “friend” you just haven’t met yet.

The unidentified man was riding the subway to a job interview in London, England, when he bumped into a fellow commuter. He then pushed the other passenger and shouted some expletives at him.

Here’s the twist: the man he confronted turned out to be the one interviewing him for a job.

The encounter came to light in a tweet from Matt Buckland, the Head of Talent and Recruiting at the London-based firm Forward Partners.

Karma - the guy who pushed past me on the tube and then suggested I go F myself just arrived for his interview...with me... — Matt Buckland (@ElSatanico) February 16, 2015

Buckland’s tweet spurred a flurry of responses online, inspiring many to tweet their own best “uh oh” moments.

Here are some of those tweets:

@ElSatanico Similar story in reverse - My dad bumped into a man's car on way to interview. Stopped, left details. Was interviewer. Got job! — Gordon Dent (@GordyMD) February 19, 2015

@ElSatanico @JuliaRampenMM I was once knocked off bike by van driver. Police prosecuted. He lost job & home. Then needed rehousing - by me. — Lucy Ferman (@LucyFerman) February 18, 2015

@ElSatanico Heard of similar once. Creative Director told as a junior he'd never make it.The man who'd told him that turned up for interview — Alasdair D Murray (@Alconcalcia) February 16, 2015 @ElSatanico @JuliaRampenMM I was once knocked off bike by van driver. Police prosecuted. He lost job & home. Then needed rehousing - by me. — Lucy Ferman (@LucyFerman) February 18, 2015 @ElSatanico @FinWycherley Better still, a guy I know was waiting outside interview room; previous interviewee came out and it was his boss! — Deirdre (@deirdrenotes) February 19, 2015

It is reported that the man didn’t receive a job offer.