And to think he was almost done. His actions were sped along a little too much thanks to Gon, but it meant that he was on the last fingernail by the time he decided to just come on in. He goes stiff, filing away even faster and trying to focus entirely on the nail in the hopes that Gon will be quiet, or change his mind, or something...

But those words break the silence and his temper. Lifting the file up and away from the nail, he snaps it in half in his irritation, stomping into an aggressive pose as he points angrily at his friend.

"What are you doing?! You can't just storm in here and say that! That's not how it works, I already have a customer!! Do you want me to get fired?!"

Well. Gon's words hadn't actually upset the customer, but Killua's yelling makes her eyes open as she sits up in confusion and offended surprise.