The discussion centers on the properties of electrically charged fluids and their potential safety for flies. It highlights that no liquid can hold a monopole charge, and any charged fluid will discharge once grounded. The interaction between a non-grounded fluid and a fly may limit charge transfer, similar to static electricity phenomena. In charged fluids, surface charges can pose a risk of shock to a fly, especially if the fluid is poorly conductive. The fly, being an electrolyte-based organism, is a good conductor, which raises concerns about its safety when consuming charged fluids. Overall, the conversation emphasizes the complexities of charge behavior in fluids and the implications for living organisms in varying electric fields.