I was just linked to a continuation fic, and it reminded me of something else I vaguely recall that I read years ago.
Does anybody recall any fics where Shampoo says something like "Shampoo won't let Ranma marry XXX" and then Ranma says something to the effect "You are always trying to force your Amazon laws and ways on me. Now are you saying that you are an obstacle? Shall I treat you as an Amazon's obstacle?" While getting ready to fight her to the death.