Ключевые слова: abstract, accident, analogy, background, backgrounds, book, business, careful, class, concept, conference, content, course, expected, flaw, forum, gavel, go, guide, happen, idea, index, journal, law, lecture, lifestyle, metaphor, murphy, murphys, murphys law, note, orientation, paper, precaution, presentation, project, promotion, rule, safety, sawed, seminar, space, still life, symposium, top view, tutorial, unexpected, will, work, workshop, wrong,