That booger, that image, is what we in the field of communication call noise.
How good a friend are you? According to a high-school buddy of mine, the answer to that question lies in your willingness to tell a person she has a booger hanging from her nose. And he wasn’t referring to the liquidy, clear boogers that come along with the seasonal cold. Those are fairly common and don’t excite much disgust. No, his was the dry, hardened, yellowish type of booger that sticks out just enough to catch your attention during a face-to-face conversation. Set aside that unappealing mental image for a second and you’d have to admit my friend’s litmus test for friendship strength has at least a little validity.