I have to do some more research on this one, because there has to be a bizarre connection someplace somehow.
In Austria they always serve expresso with a glass of water. Not sure if it's to clean the palate, limit the coffee stains, or just replenish body fluids from the diuretic effects of caffeine. Regardless, the weird thing is that they do the same thing in Brazil - the only difference is that the water is sparkling - not sparkling clean - carbonated, you twit.
Anyway, not sure how two countries on opposite sides of the World ended up doing essentially the same thing - maybe I'll blame Portugal - but there's got to be a connection there somewhere.