Great Hero
Great Hero and Great Enemy are the titles bestowed upon The Captain by the Umgah after he frees them from the neo-Dnyarri's psychic compulsion.
As a reward, they declare The Captain to be the "Great Hero", and give him 500 units of biological data and an interesting piece of information (that the Mycon are in fact tools created by some race). However, the Umgah quickly become bored by "this Great Hero stuff" and, believing it to be much more humorous, turn him into their "Great Enemy". They then proceed to attack him with their Drones en masse, but not before giving him four of their ships to maximize the fun.
Apparently, the Umgah do not get bored too soon with this joke, since they continue to attack The Captain, usually citing humorous motivations, on all subsequent encounters.