What's an example of something you very nearly did , but in the end you didn't proceed and now you are very happy you didn't?

It may have been an affair , a change of job , country , partner , a situation in general , a complaint.

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There must be so many more potential examples? Surely?
What's an example of something you very nearly did , but in the end you didn't proceed and now you are very happy you didn't?
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