When Tony Gordon arrives, Carla Connor is tied to a chair and gagged with gaffer tape. Tony rips the tape from Carla's mouth, which causes some of her hair to fly into her mouth. The next shot we see her in only seconds later, she has no hair in her mouth. As her hands are tied behind her back on the chair, she could not have pulled it out herself, and we do not see or hear her spitting it out.