At-home biology experimenters (I'd say amateur or hobbyist, but I suspect most are also professional scientists in their day job too) that dodge the approval and ethical committees by secretly doing stuff in their sheds like genetically modifying yeasts and pets, and experimenting with homebrew pharmaceuticals on enthusiast volunteers.

It's wild shit, and yet somehow even they haven't fucked up as big as China and accidentally released a self-made virus into the wild yet.