I invested in a mutual fund that is now under indictment for being a ponzi scheme. My initial investment was 10+ years ago. Since then, I've received occasional distributions from the fund, spread out over months/years, etc. Net of my distributions and my initial investment, i'm at a loss. The receiver is asking for money back from me, to offset losses of all persons invested. If i'm at a net loss, why should i give money back, only to lose more?