That happens sometimes when you cook fish. It is harmless and it is just additional moisture leaving the fish.

Preventing hair static in the winter is as easy as applying a leave in conditioner. This will add additional moisture to your hair as well as weigh it down a bit.

moisture

free moisture

inherent moisture

Cars rust from moisture (rain, snow, etc.), especially collecting in crevices where it can't readily evaporate and where dirt also is trapped and holds the moisture. Additional corrosion occurs in areas that use salt on roads in the winter. The salt not only is corrosive to the metal but will also damage the car's finish.