Sarah vs. Sarah

The black-haired girl slammed the door shut and glared at Sarah. "It's my locker. And my name is Sarah. Sarah McMillan? I'm only the most well-known girl in this school. Who the hell are you?" "I'm Sarah," she insisted. "Well, no one else seems to think so. If you don't stop saying you're me," the other Sarah insisted, "I'll call the police." She reached into her purse and pulled out her school ID. There it was. Her picture, with the name Sarah McMillan. "That's a fake." "Well, show me yours," the other Sarah challenged. Sarah reached into her purse and handed the ID to the other Sarah, who looked at it and laughed. "Get a life, loser," she told Sarah, handing it back to her. Sarah turned it over and saw...