My family are pretty much the only people who still call me by my birth name, so when my sister got the save the date card in the mail yesterday and it said "Erica and Fuzzy are getting married" she had to explain to my niece and nephew what a nickname was. Jake decided he wanted his nickname to be "Sam" and Amelia wants to be "Mia".
Disco
Marc and Mum have both asked me "what do you want to be called?" The answer, of course, resulted in no change in behavior. *shrug*