You might lose a contract.
Or a CCMA ruling.
Or your laptop.
Or whatever.
It’s not great news. You can’t control that.
All you can control is how you react.
No matter how inconvenient, scary or frustrating the news, be cool.
If you remain calm you can (a) not freak everyone else out, and (b) immediately start figuring out how to respond to the bad news.
Don’t lose your cool.