I'll be twenty-one years old!

Father:

You're going to every house where you sold a bottle of that concoction and buy it all back. John Day:
But it's a dollar a bottle. Father:
I don't care how much it is. Here, I'll give you the money now. How many bottles did you sell? John Day:
A hundred and twenty-eight. Father:
A hundred and twenty-eight! Vinnie:
Clare, I always told you John would make a good businessman. Father:
Young man, you'll have to come down to my office with me. I'll give you the money to buy back that medicine. $128, and $10 more for Mrs. Sprague's dog, that's $138. But it's all coming out of your allowance. That means you'll not get another penny until the whole $138 is paid up. John Day:
[does math on his fingers]
I'll be twenty-one years old!