Someone like that actually exists? Yes, there really is some-one like that. I was very awed and impressed!
I just realized that in most of my stories, Snape's endearment is finally calling Lupin 'Remus'! The point when Snape finally call Lupin "Remus" is nearly always the 'break-through' point in their relationship in my writing. There are so many things I've absorbed from reading the stories of others, without ever being consciously aware of it!