Und der Haifisch, der hat Z a« hne Und die tr a« gt er im Gesicht Und Macheath, der hat ein Messer Doch das Messer sieht man nicht. Oh, the shark has pretty teeth, dear, And he shows them pearly white. Just a jack-knife has Macheath, dear, And he keeps it out of sight.

-Brecht, Bertolt Eugen Friedrich
  Die Dreigroschenoper ('The Threepenny Opera'), prologue (translated by Ralph Manheim and John Willett,1970).

[They] will fearlessly commit both parties to favor mother love and the protection of the whooping crane, and to oppose the man-eating shark and the more unpopular forms of sin.

-Brinkley, David McClure
Of party platforms. Quoted in Marc Gunther The House That Roone Built (1994).