The above T-Shirt was very popular after the October, 1989 Loma Prieta earthquake. I was working in the tropical fish department of a pet store at the time, and the aquariums all around me swayed, sloshed, and flexed menacingly, but thankfully did not break. Proceeds from the sale of the shirt were donated to relief efforts for the unfortunate Marin residents who needed to repair their hot tubs.