Kajiri (male slaves or slave boys) also exist on the planet Gor, but they are far fewer than kajirae, since Gorean men can only rarely be effectively "tamed", so that most male slaves are considered inherently slightly dangerous, and have little value other than as unskilled hard labor in work gangs which must often be kept under continual armed guard. Men conquered in war who are not left free are more often than not killed than enslaved, while women in the same situation are almost always enslaved (since kajirae are a readily-negotiable commodity, among other reasons).