Jack was rarely behind the counter in her shop, preferring to be running around whenever she was actually able to come in. Running the shop, holding a job at the Ministry, and carrying out business with the Order pretty much meant Jack went home to sleep, and for no other reason. She spent less time in the store than she would have preferred, so when she was there, she liked to be in the thick of it.
However, her staff did need a break from the clerical duties on occassion. And some little kid had shived a bunch of Puking Pastilles in his mouth, and Jack would be damned if she were the one cleaning that mess. She had volunteered her least favorite employee and took his spot at the register, adding her own advice to each purchase.
"You know, the upgrade box is only a little more."
"If you're buying three of those, you might as well get the half dozen deal for two sickles more."
The next man to come up and order looked familiar. She stopped and raised an eyebrow. "Aren't you a little old for these juvenile pranks. Who is your target? Your kid brother?"