A disease which originates with and most commonly effects Diggers It is characteristic of a slow progression of growing happiness. This begins subtly with a mildly improved affect but quickly develops into acute claustrophobia and near delirious joy. The claustrophobia is prone to inducing hyperventilation and laughter as the euphoria and terror intermingle. Agoraphillia becomes acute in diggers near the late stages and tends to coincide with a propensity to grasp onto and cling to things involuntarily. Within days of the onset of grasping behavior it becomes almost impossible to drink or eat between fits of raucous and pained laughter. General death by dehydration sets in shortly after this.