Fernet.

[bloads]

If you don't like it, you hate it. It's an earthy, non-viscous liquor (consistency of water vs jager's syrup). It's an aperitif (alcohol that calms the stomach / induces hunger).
I've noticed that when I get overly drunk, and consume fernet, my nights take on a different turn. I usually sing in my sleep and go out looking for adventure, when normally I would just be passed out. I was curious about why, then when I wiki'd the stuff, it made complete sense.

Ingredients rumored to be in fernet include codeine, mushrooms, fermented beets, coca leaf, gentian, wormwood, zedoary, cinchona, bay leaves, absinthe, orange peel, calumba, echinacea, quinine,ginseng, St. John's wort, sage, and peppermint oil.[1]

Ohhhh, no wonder.