Claustrophobia

Claustrophobia is a Trait in the Fallout: New Vegas add-on Old World Blues.

You suffer from the condition of claustrifobia, the fear of tight, closed in spaces. When outdoors you flourish and gain an additional point to all S.P.E.C.I.A.L. stats. However, when indoors, you have a panic attack causing your S.P.E.C.I.A.L. stats to be deducted by one point.