An old friend once told me that a good way to kill bugs in my garden was to soak lots of cigarette butts in water to make a gallon of the brown liquid. Then add one ounce of battery acid and mix well. He said to spray it on the garden and wait two to three weeks before harvesting because it would take that long for the mixture to become Niacin. I thought it sounded cool but never tried it.
Now 40 years later I would like to, but I want to know if this is really true or would it ruin my vegetables? It's been 22 years since my chemistry classes and tried to make sense of this link.
It seems like the nicotine/acid thing would become neutral, but again, I have forgotten so much that I'd feel safer running this past a few more knowledgeable folks first.