I also sometimes call him Lupin just because he's named after Remus Lupin from the Harry Potter series. I like how realistic he is, how pretty his eyes are, and that his tag has a bunch of cool wolf facts. His tag is actually the reason I learned that the character he's named after has wolf as his last name, which also makes it the reason I named him Remus in the first place.

Being named after my favourite Harry Potter character might be one of the biggest reasons I like him so much.