Less attitude and more facts would be appreciated. If it works we will all be enlightened with no need to gloat. If not there will be less embarrassment.
My experience tells me that you are seeing leakage current through the regulators, but a few milli-amps of load will cause the negative voltage to disappear, however, if I am wrong I would really like to know. I will have to go back to the old reference books and review the internal design of linear regulators.