Tom, you promised to cut the lung. You won't forget, will you?
No, I assure you.
And you'll repair the television, won't you?
Ok.
Do you promise?
Of course.
And Tom, you will help Johnny with his homework, won't you?
I'll see. I will if I can but I won't promise.
But you'll promise not to be late for dinner tonight, won't you?
Yes. But only if you ask me nicely.
Tom, darling. You'll try not to be late for dinner tonight, won't you? Please!
Ok. I'll keep my promise.