There's all kinds of stupid going on right now. Two weeks ago, a coworker of my husband decided to come to work. He started with symptoms over the weekend and went out and got tested. Despite feeling ill and awaiting results, he decided to come to work while awaiting results (and not tell anyone). I'm sure he didn't want to lose pay. Two days after being at work, he gets his positive test. They ended up having to shut the whole job down (several hundred people) and send everyone home to get tested. Fortunately DH is negative but he will lose 8 days of pay now (as will the other several hundred employees).
My next situation is with my coworker. Her adult son has been living with her for a few weeks as he awaits an opening at an apartment building. He is pretty much lax about COVID and only recently started wearing a mask. He decided to go to one of those "gatherings"--a birthday party in someone's home. A few days after the party, he starts exhibiting symptoms. Waits a few days, gets a test, and when it's finally positive, he moves out to a hotel. Yet, he's now exposed his parents, both of whom have underlying conditions, and two other siblings. The parents had no idea he was going to a party.
Lastly, another coworker just came down with it after attending basketball tournaments (high school). He also came in after not feeling well and exposed other people, now pending results.
This is why I really *hate* the argument of the COVID-downplayers or anti-maskers: If you're so scared of it, just stay home. No one is forcing you to do anything.
While that's true, there's 3 examples here of people who don't seem to be able to avoid contact with the careless.