Ключевые слова: accident, business, careless, cartoon, caution, character, concept, danger, dangerous, design, down, drop, fail, failure, fall, flat, force, hazard, hole, illustration, injury, insurance, job, metaphor, mischance, plastic, precaution, problem, road, safety, sewage, sewer, sewerage, sign, street, sudden, symbol, trouble, unexpected, warning, work,