Ratted Out My Friend To Pass A Course
My teacher told me I was borderline for passing his course. He said my conduct was affecting my getting a passing grade. And I was so close to the edge of failing he could have gone either way.
When my friend told me he had a cheat sheet he was going to use on my teacher's test, I privately told the teacher about it the day before hoping my telling on my friend would give the teacher a better impression of me and make him pass me.
The day of the test, the teacher caught my friend cheating and sent him to the Principal's Office. Because I ratted out my friend, I passed the course. My friend to this day doesn't know what I did.