I assign (in the following order)
Microorganisms: Pathogens and some resident microbiota, symbionts and helpful microbes that are not exactly symbiotic can stay, but better not be opportunistic pathogens or else they get shipped to hang out with the Dark Lord.
Antibiotics: But only after the Microorganisms are gone... if not, we'll need them
Exams: Specially those that require you memorize a lot of fancy sounding words like beta-lactam ring and topoisomerase
And finally, home schooled people: No, not because they are all nutcases... to be honest, I had never heard about homeschooled people before a downer told me about it *slight blush* but I dont care... what I do care is that I see some of the coolest downers are home schooled... and I've been assigned to Mordor a couple times over, so I wouldn't mind the company