Share one secret that wasn’t yours and every friend quietly moves you to “don’t tell.”

Discretion gets tested once and judged permanently. When someone hears you pass along something told to you in confidence, they do not conclude that this particular secret was unusual; they conclude something about what happens to information near you. The reclassification is silent, and nobody tells you it happened.

When something arrives labelled as private, treat the label as binding even when the story is good. If you need to talk about it, talk about your part of it and leave the identifying details out.