Sorry but thats what the discussion involves.. the alcohol itself.
One of the original questions being:
Surely it would only burn most of the alcohol away making the drink less strong?
Do it with a pint glass instead of a shot glass, that would be more interesting...
I'd love to try, i've necked a pint of vodka before, necked it, gagged and coughed and then fell into my seat with watering eyes. I felt great 5 minutes later.
Dunno if I could do it flaming though.