Comment by direwolf20

6 hours ago

This is still routinely done to avoid ethanol taxes. It's called "denatured alcohol". Ethanol that has been poisoned is not considered drinkable alcohol, so not subject to the taxes on drinkable alcohol.

Furthermore denatured alcohol is also flavored in such a way that normal person would throw up on spot how bitter it is.

https://en.wikipedia.org/wiki/Denatonium