When Wheeljack warned Hawk about the catastrophic reaction of the Energon Cobra was trying to stockpile with a nuclear explosion, he defied his orders and went with their original invasion plan.
These people fear that a patient aware enough to understand the diagnosis might commit suicide or suffer some other catastrophic reaction from learning the terrible news.
The part, typically under full vacuum, is subject to less than 3 psi (20 kPa) fluid pressure and can be rapidly heated to the desired cure temperature without risk of catastrophic exothermic reaction.
Use of the High Drive in an atmosphere results in catastrophic reactions with unspent antimatter from the drive, so for intra-atmospheric operations, ships use plasma motors that vent reaction mass (water) from the fusion engines into rocket nozzles.
"The mothers have a catastrophic reaction to divorce and hope that their children won't react or register anything," said Dr. Paulina F. Kernberg, professor of psychiatry at the Cornell University Medical College and director of Child and Adolescent Psychiatry of the New York Hospital-Cornell Medical Center Westchester Division.
Soon after the tests, the publicly open atomic tests had the military feared a catastrophic reaction from anti-nuclear movements active in the country; therefore, Akbar had resisted to the authorization of atomic testing programme despite the right-wings had made several proposals.
When people with dementia are put in circumstances beyond their abilities, there may be a sudden change to tears or anger (a "catastrophic reaction").
With a minimum of effort, Dietz could remotely trigger a catastrophic reaction in the system's antimatter power cores that would destroy the guns--as well as the surface and entire population of the planet.