I had a similar experience going into a lab last week where doctor had the flu and staff wearing masks. They neglected canceling my appointment prior to my appointment. So when I arrived and saw the staff masked up, the receptionist quickly explained that the doc had the flu and had canceled his appointments (inadvertently not mine). Then she said, as I was almost out the door, “but he’ll be back in a few minutes if you want to wait, we’re taking precautions” motioning to her mask she told me she had a mask I could wear, actually touching it after she’d been exposed of course, as if that germ infested thing was something I’d want to put on my face, seriously? Luckily, I didn’t contract the flu.