Quoting Gard

Gard Tillien is a pixie man with two daughters, Pia and Alba, that he shares with his wife, Tess. When Pia turns up with a strange young man named Peter, Gard dismisses Pia to talk to her mother and settles down to a little Peter-baiting. 

Just when Peter thinks it might be safe to breathe again, Gard mentions his wife...

Tess agrees with me in every particular. [regarding the proper treatment of young women.] And I have some advice for you. Don’t cross my my lady wife. Not ever. If she likes you, she will love you as her son. If she doesn’t, she will be exceedingly polite to you, forever.