This is soooo true. When someone says, "I'm not supposed to tell you this, but." I make a mental note not to tell them anything I don't want broadcasted. If they are talking about someone else, they will probably talk about you too.
This is one of the posters from my Classroom Posters Inspirational Sayings Poster Set made for Secondary Classrooms. Includes: Classroom poster that measures on chalkboard background and version of the poster on a white background for ease of printing.