There's a major difference between your snot and your stools! Your best bet is to not pick your nose in public, not wipe your arse in public, not masturbate in public and definitely don't shake hands with people you have seen do these things. Infact just don't touch anyone lord knows what people get up to in there private time.....
Why, according to democracy I have the right to do what I please so long as I am not hurting someone. So why is wrong if I masterbate in public, clean my ass in public, pick my nose in public?
What pseudo democracy are you talking about? You mean "according to uniqueasitis democracy you can wipe your arse, pick your nose and masturbate in public." Hit up wiki and look up democracy and then come back. Or try this, Go to your local school grounds and start masturbating. See how long your idea of democracy holds true. Go to your local night club and start picking your nose. In no time you will be back to masturbating Go to your local police station and wipe your arse in front of everybody there. Again see how long your idea of democracy holds true. I'm willing to take bets on how long you will last a free man
Its not something others should do, and just like cleaning your ass you should use a tissue and not your hand and bare fingers, its something you do in private. Also it makes it even worst when you put it in your mouth at the same time.