Scientists accidentally kill world's oldest animal at age 507. The oldest animal ever known lived from 1499 until the day researchers cracked its shell open, killing it in the process.
For example, there is a federal law (and similar laws in every state) allowing consumers to cancel contracts made with a door-to-door salesperson within three days of signing. You might use that law after hastily agreeing to have someone repave your driveway, deliver lawn fertilizer, or put a new roof on your house.
Most states have laws that allow you to cancel written contracts covering the purchase of certain goods or services within a few days of signing. Many states have laws that allow you to cancel contracts for health club memberships, dating services, weight loss programs, dance or martial arts lessons, time share properties, and hearing aids.