Kang Haijiao, when he arranged duels on behalf of Temple Island Kangping, followed some rules.
First, he never wrote anything like a "challenge letter"; the old-timers understood this... As someone of the Martial Arts circles, it was best to leave as few written records as possible, or none at all, otherwise, you never knew when your handwriting might appear in places it shouldn't, bringing troubles that should never have been yours.
Second, Kang Haijiao never "previously arranged" a time and place with someone, as doing so was tantamount to giving the other party the condition of "preparation in advance"; the Martial Arts world was perilous, and if the swordsman you invited was a despicable coward, having someone hide in ambush at the duel site ahead of time was not a good thing.
