Psychologically: 'The eavesdropper on the wall hears his own Schand.' Listen (for example, in a door or wall) a bad conscience and feelings of guilt often expresses, - one fears that one of others sees through becomes and in respect loses. Popular: (arab).: what others speak: Frustration, insult, incommodities and annoyance. (European ones).: friends will talk about own mistakes, points to disgrace and a bad conscience.