John (qv) was bitten by a dog named "Pascha". The  Collie/German shepherd mix lived in the neighborhood and was hired  along with his owner as an extra When Olivia approached them asking  to pet the dog, the owner warned her that Pascha was afraid of  crowds. Leaning in to pet him anyway, she was bitten on the hand.  Needless to say, this ended Paschas movie career, and they filmed  the scene without him. Olivia braved the injury and continued  working.