“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]
(..) Dialogue: Marked=..,Default,NTP,!Effect,-Of course!\N-What is it? Dialogue: Marked=..,Default,NTP,!Effect,Don't you think it's a bit odd that what Hagrid wants\Nmore than anything is a dragon... Dialogue: Marked=..,Default,NTP,!Effect,...and a stranger turns up who\Njust happens to have one? (..)2001 Harry Potter and the Sorcerer's Stone
(..) Dialogue: Marked=..,Default,NTP,!Effect,But, Hagrid, how did you get one? Dialogue: Marked=..,Default,NTP,!Effect,l won it. Off a stranger\Nl met down at the pub. Dialogue: Marked=..,Default,NTP,!Effect,Seemed quite glad to be rid of it,\Nas a matter of fact. (..)2001 Harry Potter and the Sorcerer's Stone