A health condition

A few days ago I was getting groceries and had a difficult interaction with a person in the lineup outside the store.  He was an older man who was wearing a mask in a half assed fashion with it loosely covering his mouth but slid down so it no longer covered his nose.  As we stood in line his mask slipped further and further down until it was sitting around his chin.

It is possible that he didn't notice, and this was entirely unconscious, but I am willing to bet a lot of money that the actual explanation isn't "whoops!" but rather "I don't give a shit about covid transmission and masks are annoying, so I will pretend this just happened and I didn't notice".

I politely said to him "Oh, in case you hadn't noticed, your mask appears to have slipped down."  In text that could appear innocuous, but obviously everyone is going to read that as "Put your damn mask on properly fool, I don't want to get covid from you."

He replied by saying that he didn't *have* to have a mask on, because he had a 'medical condition'.  He followed up by snarkily saying that he would put his mask on, just for me.

I found this infuriating.  I am not trying to enforce some sort of arbitrary dress code.  I don't give a shit about the rules!  I care about disease transmission.  This isn't about me trying to make sure everyone does as they are told, it is about me wanting to end this damnable pandemic.  It isn't about whether you *must* wear the mask, it is about doing so because it is your civic duty to protect other people even if you don't care about your own health at all.

I didn't yell all of that at him, much as I wanted to.  He put on his mask, and for the moment it covered all the breathing bits of him.  He got into the store and immediately took his mask off again once he was more than a few meters from me.

Does he actually have a medical condition that makes mask use unsafe for him?  Possible, but I doubt it.  He was wearing and using a mask, but used it only enough to create plausible deniability.  However, his actual medical status doesn't change my situation at all.  I am still pissed about all the people I see putting in the absolute bare minimum amount of effort required to get people off of their backs.  I am pissed about the woman in my building who held a mask five centimeters in front of her face while talking to the concierge in an attempt to pretend she was actually wearing it.  I am grumpy at all the people wandering about the mall with masks hanging half off of their faces, just having it on enough to not get yelled at.

I wish I knew what I should do about these things.  I am a big loud dude - if I get aggressive with people about this stuff, they are likely to do whatever I say.... for just long enough to get out of my presence.  Is it even worth trying to convince selfish jerks to do the right thing if they are only going to do it as long as my gaze is directly on them?

I don't know.  What I do know is watching people who chafe under the restrictions of the pandemic behave in ways that extend the pandemic makes my blood boil.