Dear Mother of the Man Who Kept Track of the Number of Customers in My Line Compared with the Number of Customers in the Line Next to Me:

Dear Mother of the Man Who Kept Track of the Number of Customers in My Line Compared with the Number of Customers in the Line Next to Me:

You failed.

Sincerely,
The Cashier to Whom Your Son Complained Was One Customer Slower Than the Other Cashier