Three Day Dirty

Our Protagonist stands next-in-line for coffee and sees the blonde barista step back from the espresso machine. He watches her tug a scrunchie off her pony tail, run both hands across her scalp, shake out her three-day-dirty hair, then pull it into one bunch again and twist the scrunchie around it in a couple of figure-eights. In the moment it takes her to step to the bar again, he considers fleeing the line.

Too late! “Sir?” the cashier asks, and he reluctantly gives his drink order. While the cashier marks his cup, the barista impossibly steps back again and removes the scrunchie, fluffs her hair once, twice, three times, then leaves it loose. She reaches for a gallon of milk and a frothing pitcher. At the register, the cashier’s face startles when she meets our Protagonist’s eyes. He leans in. “Tell her to wash her hands!”

What happens next?