Tit for Tat

After a short drive, they arrived at the mall. Karyn was still hesitant about the device until... "Hey, isn't that Sarah?" She asked, pointing near the entrance to a clothing store. "Yeah. You want to-" "Yes!" Karyn said savagely, snatching the device out of his hands and hurrying into the store. But no sooner had she turned out from behind a rack of clothes than she came face to face with Sarah. She was so startled that she fell to the ground, dropping the device. "I saw you watching me. What are you doing you little dweeb? And what is this thing?" Sarah said, experimentally pointing the device at Karyn. "No!" Karyn exclaimed as she pulled the trigger.