Option B was actually a real life incident for me. I was 13 and got totaly freaked out by just a few minuets of the original "When a Stranger Calls" that was on late night tv so i went to bed with a knife under my pillow. and brought it with me when i went to investigate the sound of someone walking around at 3 am. It was just my mom getting a snack but she congratulated me for thinking to get a knife.