Seriously. I have one brother with olive skin, jet black hair and black eyes (like our mother) while I have extremely pale skin, very blond hair and light blue eyes (like our father). I don't think anyone would ever think we are related.
https://i.imgur.com/VZ6Slh6.jpg
Sorry for the total non-sequitur, that phrase has always just tickled my brain in a funny way and I would love to get to the bottom of that particular mystery.