That may be so, but then you things like hayfever where the immune system overreacts to the dumbest shit every year for days on end. I could totally see some innocent extraterrestrial microbe sending the immune system into a self destructive meltdown, or straight up anaphylaxis.
I wish I was kidding when I say there exist asshole recognition tech already. They’ll just attach that to your advertiser ID so their worldwide network of ‘smart toilets’ can deliver targeted ads to every stall and urinal you visit.