A name of a friend
Everyone breaks this rule so much it might as well be a law that says 'you can name anyone you want and no one will care.'
I named my brother 'The King of All Video Games' and he didn’t even flinch.
My teacher named me 'The Worst Student in History' and I got 10 upvotes.
I named my cat 'The Supreme Ruler of My Lap' and now my cat has a following.