Google Mail is rolling out a new feature called "Mail Goggles," which, as you may guess from the name, is designed to prevent you from sending rash messages while under the influence. When sending an email late at night on the weekend, the program will ask you a series of simple math problems before it allows you to send a message.
This, however, is not going to be any kind of impediment to me. I'm fully capable of talking myself into sending unwise emails late at night while perfectly sober. Until it carries a speech program that can crush my hopes and dreams, I'm afraid I won't find a use for it.