Similar here. My last name is pretty unusual, but my first name is common, so I generally go by my last name with friends and colleagues. Oddly, I've gotten so

Similar here. My last name is pretty unusual, but my first name is common, so I generally go by my last name with friends and colleagues. Oddly, I've gotten so used to this that it feels a little bit more formal when someone addresses me by my first name. To make matters even more complicated, when I do use my first name, I almost always use an abbreviation. The only people that use my full first name are my parents, sister, and (occasionally) my wife, and it's really off-putting to hear it otherwise. Names are interesting and weird.