A traveling merchant comes to town and offers you three potions to choose from. One will make you youthful and healthy for many years, but your age will one day catch up with you and you will be suddenly old. The second one will cause you to exude a charming charismatic aura that will make people like you, but is offputting to those you seek romance with. The third makes you really lucky, but will also increase your bad luck too.
Also he's a gypsy that will curse you if you don't pick one and drink it there.
Baa baa black sheep have you any booze? No sir, no sir, I'm a....sheep~