A minor curse, of the folk variety:
Old Redbeard, though his beard had long since, gone gray, used to haunt the taverns near to his home until one day he found he was not welcome. His very presence in a tavern soured beer and made wine into vinegar. Soon, he could drink no place in the city but at home, which is said to be what his wife wanted all along.
Drinker’s Curse
Sea of Stars RPG Design Journal 