They are the only attackable slaves, and will be aggressive when spoken to. If the player wants to obtain the slave robes, then the player can kill one near the guard in the first section of the underground mining camp. The clothes are only dropped if the player does not already own them.
Killing rowdy slaves is a part of a MenaphosCity Quest. This is rather slow given the lack of slaves and the need to wait for them to respawn. It is possible to speed up the process by hopping worlds. If City Quest requires a high number of slaves to kill (around 30), try talking to the City Quest giver again. They will often ask for a lower number the second time.
To enter the Desert Mining Camp players need the metal key, which can be obtained as a drop from the Mercenary Captain (located near the main gate), during and after completion of The Tourist Trap quest. The key may be on player's key ring.
Desert Mining Camp - There is a spawn location beside the guards at the Mine Cave entrance in the underground level of the camp. There is another in the detainment area deeper within the mines, however it cannot be entered voluntarily; there is a chance the player will be sent there for killing guards or for talking to other slaves, however this is rare.