Harry. But, my dear Dolly, here we are again.

Dolly. Well, I haven't got the money sense! I simply haven't got it! I was born without it!

Matt. [Hands her the bill.] The addition is quite correct.

Dolly. [Taking the bill.] You're sure? Then I'm convinced I've paid it! [Looking at bill.] Yes! Thirty-four, seven, six. Professor Sturgess——

Prof. [Looks up from his book] Yes?

Dolly. You understand all about psychology and the way our brains work.

Prof. I've given my entire life to their study, but I cannot claim that I understand them.

Dolly. But wouldn't you say——

Prof. What?

Dolly. I'm morally certain I've paid this bill.