Even in a time when unemployment in the United States tops nine percent, and food stamp usage is at an all-time high, and prospects for a robust economic recovery are dim, there are jobs that are often difficult for employers to fill.

Last month, it was reported that software companies and natural-resource-extraction companies are having a hard time finding people with the required skills. And then there are those dangerous jobs that nobody — or almost nobody — seems to want.

Business Insider recently compiled a list of nine “dirty jobs nobody wants.” Among them are a couple of jobs common in New York City: window washer and high-rise iron worker. Why can those jobs be difficult to fill? Because of the risk of on-the-job injuries involving scaffolding collapses and other workplace mishaps resulting in the need for a workers compensation lawyer.

Here’s a look at the nine sometimes tough-to-fill jobs:

  • Window washer: “injury rates are high,” Business Insider states when explaining why this job can be difficult to fill. Employers have to find people who are comfortable not only with extreme heights but also with scaffolding. A California window-washing firm said it has had a half-dozen washing jobs available this year; only two have been taken.
  • Ironworker: these construction workers erect high-rises, bridges and highways in every kind of weather. And many of them work at heights that make the rest of us look like ants. Again, fear of workplace injury sometimes keeps people from applying for these jobs.
  • Dairy farmhand: milking cows on the graveyard shift? Not a job many Americans want. Statistics show that 41 percent of these workers are foreigners.
  • Head lice technician: it’s undoubtedly evident why these positions can be tough to fill.
  • Diaper service worker: it’s a dirty job, but apparently companies are not currently having difficulties finding workers willing to do it.
  • Septic/sewer servicer: it stinks that these jobs can go begging for workers.
  • Meter reader: slow, dull work that doesn’t pay very well, but apparently there are currently more applicants than meter-reading jobs.
  • Roustabout: working on oil rigs can be surprisingly low-paying, but the dangerous jobs are usually filled fairly quickly.
  • Animal slaughterer: dangerous, grisly work means high turnover rates and employers constantly on the search for new workers.