“Mutual combatants was cited as the reason for the rejection.” Mutual combat is a legal term used to define a fight or struggle that two parties willingly engage in.
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Hmmm. Where I live, if you get involved in mutual combat you have no right to use deadly force unless you withdraw from the combat, convey that clearly to the other combatant, and the other combatant then launches deadly force against you.
I would be surprised to find that agreeing to mutual combat (basically dueling) has been legalized in parts of the US.
SOOOOOOO—CHARGE THEM ALL