jobo
Grandmaster
It . Matters very much if you going to make a legal point that it isn't self defence , there has to be a very specific form of words , so that both can be said to have agreed, and then having gone out side to " fight" either can change his mind , then that agreement is null and void and self defence can apply againGo back and re-read my posts. I was asking questions, because what you said didn't match what I'd assumed the case was. Your responses seemed to imply something and I asked another question. You decided it was time for an argument.
EDIT: To your question. Dunno. Two guys decide to have a fight. Doesn't matter for the point how they did it. Could be a handshake. Could be a challenge accepted. Could be a dare. Could be a signed contract written on a table napkin. Doesn't much matter for the point of the question.