Americans think being a politician is scarier than being a mortician or an infectious disease doctor. In fact, there's no job in the U.S. that workers fear more than being an elected official, according to a nationwide survey by CareerBuilder. It's all that public speaking, rejection and accountability associated with the job that terrifies workers most. CareerBuilder's survey, conducted by Harris Poll, asked 3,103 full-time workers nationwide which jobs they found "most frightful." Here are the top 10 scariest jobs, straight from CareerBuilder's survey: 1.