A change of nickname
Our tale begins in Myrtle's bathroom, her boyfriend Griphook the goblin is visiting her.
Myrtle asked, "Where have you been today, Hooky?"
Griphook told her, "I was visiting Dumbledore's office."
Myrtle gasped. "Oh?"
Griphook nodded. "Yes, I was talking to him about you."
Myrtle replied, "Why?"
Griphook smiled. "My dear, you have always told me that you hate what everyone here calls you. 'Moaning Myrtle' isn't exactly a pleasant nickname, is it?"
Myrtle muttered, "They have always called me that though, you can't singlehandedly change that."
Griphook smirked. "Oh, really now? Well, do explain why Dumbledore himself promised me that he would do everything in his power to change it then?"
Myrtle grinned. "Are you being serious?"
Griphook beamed, "Absolutely. Now, do you have any ideas what you would like to change it to?"