"Shell shock was a term coined to describe the reaction of some soldiers in WW1 to the trauma of battle. It was a reaction to the intensity of the bombardment and fighting that produced a helplessness appearing variously as panic and being scared, or flight, an inability to reason, sleep, walk or talk."
Bleh, this can be considered a vent too.
Water soluble graphite, Micron markers, some other markers, white gel pen, black colour pencil and a little bit of ink.