So apparently the story is, the Kumara that go in to Purple Monkey
Finger are grown on land that was the cemetery of the
local prison for the criminally insane.
The gardens were looked after by crazy old nuns, all of them were blind except for the mother superior who was mute.
She was mute until one of the prisoners made moonshine out of the Kumara, in her room alone one night, she had a drink, and she started screaming and didn't
stop until she died.
They say that even now, if you open a bottle of Purple Monkey
Finger alone, in the dark, in a very quiet room, you can hear the old mute nun scream.
Patient: But
Doctor, I'm a virgin, how could I be pregnant?
Doctor: I have reason to believe you have recently had some Purple Monkey
Finger in you.
Patient: SHITBALLS!