So, the Romans had something they tended to use on slaves. It was used as both punishment and in extreme cases as torture.
The goat's tongue on the soles of the feet. At Torture Camp, it certainly would not cause permanent injury, but it would be unbearable, especially for someone who is very ticklish. I have never experienced it, but it has been another fantasy of mine.
The slave/prisoner (me) is tightly restrained, feet in stocks, toes tied and the bare soles are rubbed with a viscous, salty substance. The goats are set to work. At first it seems like a joke, but after a while, it becomes irritating, then uncomfortable, then painful...and then agony. When the goats become tired or bored, I think the punishment is over.
I am so wrong. Another pair of goats is brought in and set to work on my feet. After they have been at it for some time, I am howling, begging for it to stop. By the time these goats are bored, I am grunting, gasping; slumped in the stocks and beginning to cry. I lose control of my bladder. My eyes roll back and I am drooling.
I beg to be released. I cannot stand it. "Pleeease, no more please!"
To my horror, a third pair of goats is brought in. I am hysterical. "NOOO!!! I can't stand any more! Please, NO!!!"
My poor soles are rubbed once again with the saline substance and the goats go to work once more. It goes on, and on...and on.
In reality, if this is done the flesh is damaged by the constant licking of the animals' very rough tongues. Nerve endings are exposed on one of the most sensitive parts of the body, with permanent damage likely. At Torture Camp the process would only be done until you were snorting, groaning, exhausted and demented.