No matter who are, there’s always that one sound that makes your toes curl and your skin crawl. Whether it’s terracotta plant pots, nails on a chalkboard or children crying, there are a whole host of sounds out there that can only be described in one way: unbearable. To get to the bottom of which sound really is the worst, we ran a short poll on social media to gauge people’s reactions to a shortlist of some of worst sounds to ever pass through a human ear. The shortlist was made up of suggestions from around the Cirrus sales and marketing office, with the option for respondents to add their own suggestions if they found our list of audio atrocities wasn’t abominable enough.