It began at work. At the community college, he taught Psychology 101 and Abnormal Psych. This particular day, he finished his two o'clock class and was heading to his office for a short bout of Z's before grading a pile of papers. Up half the night due to a neighbor's barking terrier, he felt a bit fuzzy in the head. While inserting his key into the office door, the door knob disappeared. It was quick, partly gone, then back.