I declare today September 20 to be the first ever "International Ban Booger Picking in Public Day". The impetus for this much needed declaration was the major offender sitting right next to me in the New School Quiet Room today. He was a well-dressed Asian guy who nearly made me vomit by using his index finger, with the occassional use of his thumb for leverage, to mine for gold. And then he rolled gold. It was amazing to what depths even I, who likes gross things more than most, can be grossed out.
The way to make this work is by shaming offenders. There have been numerous studies on shaming as the most effective way to curb behavior. Numerous. So when you see someone's fist up their nostril, scream, point and yell, "Booger picker! Booger picker! Booger picker!!!" And they will thank you. And the world will be a better place.
P.S. Asians, you aren't exempt from this ban. Sorry. Actually, you need to be more vigilant because there are clearly some propensities there.