Upp is likely a Dissociative Fugue victim. She may have full or partial amnesia but retain functional ability. She may or may not have sent emails from the Apple Store.
Subliminal Distraction is the possible cause of episodes like this. It was discovered when it caused mental breaks for office workers in the 1960's. The cubicle was created to deal with the vision startle reflex to stop the phenomenon by 1968.
It never occurs to anyone that this is a problem of human physiology not just business offices. If Hannah Upp created the "special circumstances" of those 1960's situations she would eventually have psychiatric symptoms. They would include fear, paranoia, panic attacks, depression and thoughts of suicide.
VisionAndPsychosis.Net is a five year investigation of this phenomenon with the premise that this problem is still happening.
There is a long list of missing college students. The only other high school teacher to go missing under these circumstances, walking away taking almost nothing, is Tara Grinstead of Ocilla Ga.
Most victims recover and return or seek help recovering memory. There are several examples of that on the Missing Students, Dissociative Fugue, and Mysterious Disappearances pages at VisionAndPsychosis. Net.
http://VisionAndPsychosis.Net