And while we're on the topic (mc d - this moving green thing is scary. it looks like a smiley face becoming a tooth, how did you do that tricky thing)
anyroad back on the track I think it was very naughty of Harry to tell the goblin that the goblin would get the sword when Harry didn't plan to do that. He should have made some very legalistic statement that he would give the goblin the sword at the time and place agreed to by the parties heretoforward etc. and so forth. I know the goblin got it anyway, but HP should not have been so dishonest and he is supposed to be so sensitive about non-wizard types lie house elves. Hermione was correct here. As usual.