Me too. If one is indoors for more than 15 minutes it’s as likely as anywhere else indoors should there be someone sick around. If asymptomatic, they wouldn’t know. In a pharmacy, one also gets sick people coming in for meds. If they think they have allergies or a cold - it could happen. The H of my Covid + neighbor went out somewhere the other day. He shouldn’t have, but he did. He certainly could be contagious.
That said, the two H knows who got sick soon after their vaccines also go to work, church, grocery shopping, and likely still get together occasionally with others, so I’m not placing blame on getting vaccinated. I’m not sure what their vaccination set-up was. They didn’t say.