Agoraphobia

Agoraphobia was a psychological condition. The sufferer was afraid of open spaces and the outside, to the point where he could not leave his own home.

Alistair Gryffen began suffering from agoraphobia following the loss of his wife and children. (K9TV: The Fall of the House of Gryffen) He eventually overcame his fear in order to shut down the Space-Time Manipulator. (K9TV: The Eclipse of the Korven)