Slaves in CB
 

Male Dwarf slaves seem to have the highest spawn rate. Especially in the caves. May want to revisit that. Also, slaves don't return keys if you give them the wrong one. Not sure if this is working as intended or not.

Originally, NPCs wouldn't give you back something that they didn't need for a quest. If you gave a slave the wrong key, they'd eat it but tell you which one they needed.

What players did back then was give a slave a copper, which would prompt the slave to say which key they needed.

Yeah. But 8 dwarf males of 10 spawns? rediculous.

not statistically significant etc.

You used to be able to give them anything (a copper, for example). They would tell you something to the effect that it's not what they need and that they need key number suchandsuch.