My math skills aren't what they used to be, but there was a post a few miles up that said they made punch with grain alcohol that was diluted to a strength of "only 20%".
That may be so, but unless you are doing shots of punch, and not drinking 16 oz cups of the stuff, it is just as deadly. Overproof liquor is best left to the pros - too many people can get in trouble. Plus, before the company I worked for lost a HUGE lawsuit involving flaming rum and a kid with a beard, many bars carried the stuff. When there is home use, the overproof stuff can be explosive, not just flammable. If you try to ignite a bottle (which makes a nifty blue flame with 80 proof stuff) the 190 proof will explode.
Second - Stroh Rum, from Austria, is 80% alcohol, that is 160 proof. Nasty stuff too. (though they also make 60% and 40%).
(not trying to be a kill-joy about this. It's just after bartending for 20 years, I have seen a LOT of really stupid people with alcohol. Too many times I've called 911 for either the cops or an ambulance. Moreover, in my state of Illinois, the liquor liability for bars and home use is unbelievable)
