This happens conversely as well, where the person would remember a rosy version of events in which they themselves acted quite badly in actuality. Just because

This happens conversely as well, where the person would remember a rosy version of events in which they themselves acted quite badly in actuality. Just because a person believes they did not do something bad doesn't mean they didn't. It has led me to automatically put into doubt stories people tell me that I did not witness myself.