Did your mother ever tell you to put nothing in your ear smaller than your elbow? Mine did. Of course it didn't make much sense as a child because obviously an elbow is a pretty big thing to try to get into the tiny ear canal. But as I aged, I got it. Keep objects out of your ear. Period.
The same goes for your nose. Who doesn't have a story to tell about someone they know (maybe even yourself) who wedged a crayon, or if you were my late Aunt Irene, a bean, up in a nostril?