Sometimes people add little details to their stories to make them more interesting; it’s known as embellishing. In other cases, the storyteller only remembers part of the story or they misattribute some of the details. This is known as misattribution and often leads to the same result as embellishment.
Misattribution happens, though, and it shouldn’t concern anyone unless it begins to make carrying out daily activities, like doing one’s job, more difficult than it should be. Misattribution can be particularly problematic for writers and researchers who may find themselves unintentionally plagiarizing others or inaccurately recalling important details associated with an event or idea.