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THE VIDEO SHELF · programming mistakes

The Worst Typo I Ever Made

Tom Scott recounts the worst typo he ever made, a subtle mistake in code with destructive consequences at a previous job. It is a cautionary tale about irreversible operations.

Why HN readers recommended it

Shared in outage and accidental-deletion threads as a relatable, well-told horror story.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
Tom Scott
Topic
programming mistakes
Format
commentary
Level
general
HN recommenders in dataset
2
HN mentions in dataset
4
Recommendation years in dataset
2020–2026

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • Tom Scott has a great video on his "Oh Shoot" moment ( [VIDEO] ). Thinking back on the times I've had code exist nowhere else but the clipboard...

    rococosbasilisk on Hacker News · 2020-08
    In The “Oh Shoot” Moment
  • The good ol' Ohnosecond: > An "ohnosecond" is the second after one makes a terrible mistake, such as deleting the wrong file or sending a text message to the wrong person, where the person in question can do nothing but say "oh no". The term …

    sneela on Hacker News · 2026-07
    In List of Humorous Units of Measurement

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.