NO. The most common way to choose an ear of corn is to peek at the ear by pulling back the husk a little, looking for bright full kennels. My mother did it, and your mother did it. Don't be like your mother. In addition to being questionable from an etiquette point of view, it also allows that ear you didn’t buy to deteriorate faster. Also, it is probably not very effective. See my tips on picking the best ear of corn above.