Quote from Blanche in The Stan Who Came to Dinner
Blanche: Dorothy, this is Rob and this is his brother, Bob. Dorothy: I swear I have seen you somewhere before. Oh, there you are. [laughing] That's a joke. You see, Blanche didn't mention that you were twins. Blanche: Well, I never met Bob until tonight. Rob: Blanche, I told you we were exactly alike. Blanche: Dorothy, you'll be thanking me for years to come.