Claustrophobia

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

You suffer from the condition of claustrophobia, 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.