“Excuse me. Do you know where the library is?” “I'm sorry. I'm a 'stranger' here myself.”
She is 'no stranger to' controversy. [=she has been involved in controversy before]
He is a 'stranger to' losing. [=he does not know what losing is like]
(..) Buzz! -No! -Mom, if I eat all my pizza, can I have some alien slime? This cannot be happening to me. -A stranger. -From the outside. Greetings. I am Buzz Lightyear. I come in peace. Before your space journey, re-energise yourself (..)1995 Toy Story