The Australian aboriginal has this quality in a well-developed degree.

Do not read the following instances if horrors are not pleasant to you.
They were recorded by the Rev.Henry N.Wolloston, of Melbourne, who had been a surgeon before he became a clergyman: 1.

"In the summer of 1852 I started on horseback from Albany, King George's Sound, to visit at Cape Riche, accompanied by a native on foot.

We traveled about forty miles the first day, then camped by a water-hole for the night.

After cooking and eating our supper, I observed the native, who had said nothing to me on the subject, collect the hot embers of the fire together, and deliberately place his right foot in the glowing mass for a moment, then suddenly withdraw it, stamping on the ground and uttering a long-drawn guttural sound of mingled pain and satisfaction.