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.
To cancel a sale, sign and date one copy of the cancellation form. Mail it to the address given for cancellations, making sure the envelope is post-marked before midnight of the third business day after the contract date. Saturday is considered a business day; Sundays and federal holidays are not.