Now you play mail clerk. Fill out the little form with your name and address. Check the box for “lead” and maybe write a tiny note saying “please be nice.”
Put the vials in the biohazard bag they provide—yes, it looks dramatic, but you do it anyway. Then stuff everything into the prepaid envelope.
Drop it in a mailbox. Resist the urge to kiss it for good luck. Just let it go. Your water sample is now on a journey far more exciting than your commute.
