In answer to the beer last name.
Though it is in truth a fairly common name my sisters had to put up with the whole ‘Miller Time’ jingle and comments.
No one has ever called me by my last name and the only people who use my first name (Cathryn) are people who don’t know me or my mother when she’s mad at me for whatever reason (and then she adds my middle name).
I sign my full name but do not use it otherwise.