"The perfect pet at the perfect price -- guaranteed." Creature Dex at the bottom of the sub, if you want to include "relatively harmless" alien critters in your campaign.
There are crimes for which a man is not killed, but chased into the wilds, away from his home and country, to not return or be killed on the spot. In one culture is the condemned mutilated, and even his vocal cords are damaged so that the voice is unrecognizable to his friends and family. This is the punishment for people too obsessed with their own prestige.