Sarah instinctively lifted her head as she felt the belt slip down and brush against her chin.  Her eyes then widened when she felt it tighten around her neck.  At first, she thought it was just a measure of holding her in position, but then she felt it grasp at her throat even harder.  Sarah could no longer breathe and began to freak out.  She body jolted in all directions as she begged silently for air.  She twisted her hands and moved her wrists roughly against the zip tie, ignoring the pain as it cut into her skin, causing it to redden before it began to bleed slightly.  Her eyes were slowly on their way up into her head as she lack of oxygen continued.