75 Expensive Mistakes People Made That Might Make You Say “Ouch” Just Looking At Them (New Pics)

Trading errors can happen in the blink of an eye with devastating results. In 2005, a stockbroker at Mizuho Securities in Japan made a typing mistake that cost the company around $225 million. Instead of selling one share at 610,000 yen, he accidentally offered 610,000 shares at 1 yen each.

Investors immediately jumped on the incredible deal, buying up the drastically underpriced stock before anyone could stop the trade. Even with stock exchange rules limiting some of the damage, the typo became one of the most expensive keystrokes in financial history.

The entertainment industry isn’t immune to costly mistakes either. When reshoots were needed for the 2017 film Justice League, Warner Bros faced an unusual problem. Actor Henry Cavill had grown a mustache for another role and couldn’t shave it off.

The studio ended up spending around $25 million to digitally remove the mustache from every scene featuring Superman. The extensive visual effects work became a notorious example of how small scheduling conflicts can balloon into massive budget overruns when production timelines collide.

These stories remind us that mistakes happen at every level, from individual people to massive corporations. The scale might be different from dropping your phone or denting your bumper, but the fundamental lesson stays the same. We’re all capable of errors, and sometimes the most expensive ones come from the simplest oversights.

The best we can do is learn from these cautionary tales, double-check our work, and hope that when we inevitably mess up, the consequences are a bit more forgiving.