When the pandemic began, Melissa Villareal was teaching history to middle schoolers at a private school in a wealthy California neighborhood. It was a job and a field she loved. Now, just over a year later, she’s left teaching entirely, to work in industrial design at a large beauty company.

People like Villareal are leaving their jobs – or thinking about it – in droves. A Microsoft survey of more than 30,000 global workers showed that 41% of workers were considering quitting or changing professions this year, and a study from HR software company Personio of workers in the UK and Ireland showed 38% of those surveyed planned to quit in the next six months to a year. In the US alone, April saw more than four million people quit their jobs, according to a summary from the Department of Labor – the biggest spike on record.

There are a number of reasons people are seeking a change, in what some economists have dubbed the ‘Great Resignation’. For some workers, the pandemic precipitated a shift in priorities, encouraging them to pursue a ‘dream job’, or transition to being a stay-at-home parent. But for many, many others, the decision to leave came as a result of the way their employer treated them during the pandemic.

That was the case for Villareal, who found herself back in the classroom after only a short closure. (In the US, private schools, governed by different rules, were able to return to in-person learning much sooner than public schools.) Villareal was uncomfortable about her safety, and saw her stress and workload spike when she was juggling both in-person and remote learners concurrently. She felt her concerns weren’t being addressed, or even heard.

Ultimately, Villareal decided she’d rather quit and start over in a totally new industry than remain in a job where she felt she was being under-valued and unheard. It was a tough choice, she says, because “there’s guilt as a teacher. You don’t want to leave the students”. Still, Villareal continues, “it became so clear that this isn’t about my health, the health of the kids or the mental wellbeing of anybody. It’s a business and it’s about money. The pandemic ripped that veil from my eyes.”