Dank Soul Guarantee - Danksurance
The Dank Soul Gurantee is my karma based system of insurance.  I acknowledge and respect that karma would play a negative role on me if I were to steal anybodies deposit, thus, offering an incentive to not perform such an action.  Dank Bank, as with many other investment opportunities, is largely trust based.  I hereby give my word and my soul that I will perform as an honest trader, no exceptions.

(mod edit: dank has refused to repay, and thus forfeited his collateral - his soul)