In general: Penknife warns about need and misfortune. Psychologically: A closed penknife wants to say one that one is a hidden, very reserved person. An open penknife against it says, in one bubbles a lot of aggression and fury, as well as are deeply hidden in a desire for revenge which one wants to admit to himself not openly. Popular: (arab).: indicates a low success, - also: you always know how to help yourself, unanimously: you are a hidden, reserved person, open: you own an aggressive trait. (European ones).: one should watch out for Klatschereien not to damage itself independently, - a mishap approaches. (ind).: see: you will get in need, - privations. (See also knife)