Now picking one’s nose can seem the most natural thing to do when one feels uncomfortable or has an itchy sensation in that area. There is nothing wrong with removing the offending speck or whatever it is. But it is wrong when you do it with unrestrained aplomb, especially in full view of people. It is even worse when you seem to be enjoying it.
I had the unfortunate experience of witnessing a smartly dressed man pick his nose with such poise it seemed like the most natural thing on earth.