'It's past your bedtime, Vinny.'
Okay, I know things were different 140+ years ago, but would a father really tell his grown daughter to go off to bed? I know Roz was playing younger in the film, but not that much younger! Would a gal in her late 20's (at best) even have a bedtime?
Although if she never got over her childhood fascination with Daddy, then he indeed probably did have the power of suggestion over her. ("Why yes, father. As a matter of fact, I am feeling a bit pekid.")
"They're all gonna laugh at you! They're all gonna laugh at you!