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
Crustacean definition, any chiefly aquatic arthropod of the class Crustacea, typically having the body covered with a hard shell or crust, including the lobsters, shrimps, crabs, barnacles, and wood lice. belonging or pertaining to the crustaceans.