Via the Huffington Post: The number of children living apart from their fathers has more than doubled in the last fifty years, from 11 percent in 1960 to 27 percent in 2010.
crust - the trait of being rude and impertinent; inclined to take liberties cheekiness, insolence, impertinence, impudence, freshness, gall rudeness, discourtesy - a manner that is rude and insulting
Meronyms (substance of crust): sial (the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum). sima (rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium). Hyponyms (each of the following is a kind of crust):