[whattajoke]

I have also seen a couple of things that weren't there over the past 50 years.

Yeah, me too... I forgot to mention those infamous undergrad parties. ; )

[js1138]

My point is that "seeing things is a rather common occurrance that can be associated with sleep, sleepiness, drugs, drug side-effects, epilepsy (no relation to mental illenss), mental illness, fever, infection, malnutrition, electrical stimulation of the neurons, stress, and more.