You were busy working retail at a local grocery store, when a fairly good looking lady went up to the counter and set her things down. You began to scan the items at your usual pace when she spoke up, seemingly annoyed.
“Oh, my gosh. Can you scan any slower? I swear.”
You stop scanning, an annoyed frown appearing on your face, too tired for this, but also wanting to mess with her. You started scanning her items slower than before, stalling for time.
She grew even more annoyed by this action, crossing her arms in frustration.
“You can't be serious, right? I've got somewhere to be,” she declared, frowning at you in disappointment and disbelief, her impatience growing by the second.
“I could've done it faster at the self checkout lane, hurry up.”
You had the perfect opportunity to say something snarky or crude, you just had to think of what would hit the hardest.