By using his mind the master finds out what he can do to punish his slave. He took out of his shoes a pair of socks that had been worn for days and which must have smelled very bad.

Where would he put it? Wash it? Of course not, he would make the slave eat it for a few minutes and be forced to smell the terrible smell. He forces the slave to inhale every scent of the socks. Can he resist? Of course not, his hands are locked behind his back in a camel clutch.

Double pain!