In a stock market crash, the Brain Gremlin's official advice is to "put everything they've got into canned food and shotguns". 3. Iconic "Useful" Quotes Rick Baker and the New Batch of Gremlins 2 - Facebook
The "New Batch" is varied. Look out for Mohawk (vicious leader), George (grumpy), Lenny (strong but dim), and Daffy (pure chaos).
If the rules are broken, you are no longer dealing with simple pests. You are dealing with "atavism"—an aggressive nature amplified by genetic experimentation.