OK, just for you, core dump.
horizon flyer was trying to teach us that "placing it water may not be the best idea it shorts the battery." That is utter nonsense.
Your efforts to liken water's effect on a battery (many hundreds or thousands of Ohms, and negligible Wattage) to a wire ( a few tenths of an Ohm, and many Watts) is as flawed as horizon's thinking. Water across the terminals of a battery behaves nothing like being shorted with a wire whatsoever.
Your further quibble about whether a wire is effectively zero Ohms is a totally bogus argument which detracts from the very important issue of how to deal with such a dangerous situation in flight.
Putting a smouldering runaway Li Ion battery in water is EXACTLY the right move, for the very reasons given by numerous more knowledgeable contrinutors than either horizon or yourself.