Tubstitutionalized
When the dog won't come out of the tub, or runs to it whenever she's afraid or uncomfortable. Situations such as, but not limited to, rain, thunderstorms, high winds, unexpected loud noises, construction, garbage/recycling trucks, doors of port-a-pots closing sharply.
My dog hasn't come out of the tub for more than food or drink in days because it's raining, she must be tubstitutionalized.