Here’s the scenario: Your friend said, or did, something that has your blood boiling, and you absolutely must have the last word. You take to Facebook to say your piece. Hours later, you’ve calmed down and are ready to move on, but it’s too late, because she’s already seen that cryptic status update (that was totally directed to her) you posted. Uh-oh! Never let a friend find out how you really feel by reading about it on your feed. There are more mature way to communicate.