Please help. The other night my daughter borrowed my Browning Signature knife that I keep on my keychain and opened a packet of shampoo. She did not bother to rinse the stuff off and when I got up the next morning it had a few small spider-like rust stains that I can not get off. I tried using a rust eraser and WD-40 to no avail. The blade is either 440-C or Aus 8 I think. Do you have any suggestions other than putting my daughter up for adoption?