Eumaeus was originally son of the king Ktesios, who ruled the island of Syra. When Eumaeus was a child, he was kidnapped by his nurse, who was a slave and wanted to escape. Eumaeus was eventually purchased by Odysseus's father, Laertes, and raised in the household. He is the first mortal that Odysseus meets upon his return to Ithaca.
Fear a lot of the time. When one is corrupt, the people that wanted to keep them corrupted could come find out who told the authorities and come after them.