Back in my edgy high school days (mercifully) long past, I was rather fascinated by absinthe because it's usually green (I never saw the appeal of the red version, let alone the boring colourless "bleu" one) and very potent, so I know this and that about the thing since. And the more I learned about the nature of copper posioning in the meantime, the more the whole notion seems to track.
Ah, I knew we can trust the resident chemist to make it sound even worse!