- Dr. Lillian M. Gilbreth: I wasn't asleep, dear. I was just thinking of someone who loved us all very much... and saying thank you.
- Sam Harper: [hearing muffled explosion] What on earth was that?
- Dr. Lillian M. Gilbreth: The childern have a chemistry set in the cellar.
- Sam Harper: Smells like alcohol.
- Dr. Lillian M. Gilbreth: Mr. Harper, alcohol is a chemical.