Someone that sells insurance. Good eating, and also a weapon if you're a reluctant cannibal.
In the Jungle, you might have an improbable encounter with a man who offers to sell you life insurance. If you choose to buy the insurance, every time you are sent to the Failboat 50% of the req you were carrying will be returned to you upon being returned to the mainland.
Thereafter, every time you meet the insurance salesman, you will be required to pay a premium (the size of the payment scales with level). If you cannot pay, the salesman will become enraged and attack you (much like the ferryman). Whether you win or lose, your insurance will be cancelled, and you will be unable to purchase new insurance until your next DK.