Sure, it's an urban legend. But the question is - would it work? Most beer in kegs, they use Carbon Dioxide, which buggers it up; Guinness they use Nitrogen, which is not so bad. Someone must have tried a few other gasses - so what happpened?

Thread drift I grant you - but I put in two songs, so I feel entitled to drift a bit. And whie I'm about it, here's a third.

The Tokyo Rover

I went up to the bar
of this pub in Japan
and I asked the landlady,
"Put a drink in me hand".
And she gave me a bottle
and it tasted OK
then I lit a cigar,
and me world blew away.
And it's no, no never,
no, no never no more
I never will drink
in that Tike-Tak bar.

I reached for me pocket,
but me pants were alight,
and the landlady's eyes
opened wide at the sight. And she says "You'll quit drinkin
if you've got any sense
with a customer like you
I will gladly dispense".

And it's no, no never,
no, no never no more
I never will drink
in that Tike-Tak bar.

I'll go home to my parents,
me Dad and me Mum,
and I'll ask them to bandage
my poor injured thumb.
And when they have done so, I might have the odd jar,
but I'll nevermore drink
in that Tike-Tak bar.
And it's no, no never,
no, no never no more
I never will drink
in that Tike-Tak bar.