Years ago, when I lived in the mountains of Colorado, a friend of mine threw a party and mixed up a bunch of what he called "party punch". I don't know the exact formula, but it was a bunch of white liquors with some mashed up fruit (cherries, strawberries, etc) in it, all mixed up in a big Coleman camping cooler. He said he mixed it up extra strong for this particular party, and was quite proud of it.
Me and the other partygoers thought it tasted great, but a few people passed out, my friend's fiance retired early with a splitting headache, and a couple people swore they got alcohol poisoning from it.
I somehow made it home alive (I don't remember much), and went and visited them again a couple days later.
When I walked up to the house, I noticed he had thrown the remnants of the punch out in the yard, and there were all these bits of fruit lying around.
Now, in the mountains of Colorado, anything left out gets eaten, doesn't matter what it is. But these bits of fruit remained untouched. Even the animals roaming the woods didn't want anything to do with it.
My friend swore he'd never mix up another batch of that stuff again, and to this day he refuses to make any, and won't share the recipe with me.