She threw the phone on to the couch, where it bounced and accidentally hit Crookshanks who hissed at her in retaliation. "Sorry, Crooks." When Hermione bent over to pet him was when she heard it: a footfall in her flat when she was supposed to be the only occupant. The adrenaline hit her veins and before she could have full visual on who she was hexing, the intruder was on the floor.