I wish I'd used Calm Mind so I could just Draining Kiss every dang Substitute. {XD}
But that wasn't what I meant. On Showdown, they have a clause called the "Endless Battle Clause" where "Forcing endless battles is banned". I thought using Substitute, healing up, and basically going to a situation where we both lost a tiny amount of HP each qualified as an "endless battle". Apparently, this is what was meant. The battle is never finished, and the music keeps playing at turn #164. I don't know how a forfeit didn't register.