A close relative of mine for the USPS. Mail volume has dropped dramatically, yet they are desperate for employees to work overtime.
It's because so many are using their vacation/sick time or otherwise not coming in, and I don't blame them. Some are going through cancer treatment, have diabetes, or other complications which put them at risk.
Some in the distribution center have contracted COVID-19, and at least one (but maybe more) has already died.
There are a lot of people endangering their life coming in to work, and not just grocery stores and hospitals.