When I made elderberry vinegar in Italy, my landlord happened to call in one day when I was decanting it from the fermenter into bottles. He asked what it was and then if he could try some. I thought he meant 'take some home in a small bottle' but he then indicated he just wanted to drink it. So we sat there for a while with him sipping the vinegar until he'd finished his cupful. He thanked me and said he wasn't going to pay to fix the hot water service. Sourpuss.
“If chugging vinegar sounds curious to you as well, be apprised that this centuries-old practice has only recently been abandoned. The Romans diluted acetified wine with water to make an everyday thirst quencher called posca, and vinegar has been touted as a cure-all in Asia and Europe for centuries.�?
The New York Times, Dropping Acid, by Toby Cecchini, November 11, 2008