I am similar. At Uni I had a gregarious circle of friends and got a nickname that "everyone" used including my now wife. Out of Uni, in the workplace I am lega

I am similar. At Uni I had a gregarious circle of friends and got a nickname that "everyone" used including my now wife. Out of Uni, in the workplace I am legal-name - no more, no less. I don't want work bullshit to taint what I associate with friends and good times. In further adult life, you get my legal-name until I know you well enough that we're social and you overhear my nickname. It also means legal-name is more disciplined, whereas nickname is not... My wife knows when to use which one. :-P