I'm sure it has been done...it definitely burns . It's what the moonshiners refer to as the "heads" of a batch run. not-drinkable at all...well, I guess you could but maybe only once, I wouldn't recommend it., but it will sure clean a paintbrush or degrease something.
Theres the heads-which are these distillates that come off first, basically fuel or cleaning fluid
The hearts which is the drinkable part of the batch
and the tails which is the liquid left over after the run after the alcohol has distilled off. Its pretty much sugar water and used in the following batch(this is where sour mash comes in)
I can remember a show on PBS when I was younger , the short video shown was of a farmer who showed how his corn was seed started , harvested then he took his corn and made fuel out of it to run his farm tractor...looking back I wish I had paid better attention. He basically made moonshine out of the corn and what he was using as fuel was the heads, or what former President Jimmy Carter pushed off as Gas-ahol. I think now it is more like E-85. Thankful for the education aspect of PBS...lol