New Yorkers seem to know things that people in the rest of the universe don't. For instance, New Yorkers know that all sorts of unseen contaminants and nastiness might be lurking on the rims of your canned beverages, so any time you buy one in this city the vendor gives you a straw through which to drink it.
That's why I like it here, dammit. Because we're so much cleverer than anyone else.
In what ways have you noticed that New Yorkers are the cleverest?