Google has added a new experimental feature to Gmail: Mail Goggles. Its aim is to make sure that you really want to send an email by asking you simple math problems to verify you’re in your right mind. By default, it is set to only be active late at night on weekends (the time they say you’re most likely to need it).
Perhaps this will be a great feature for some; however, a more useful feature would be to delay sending an email 5 or 10 seconds after you press Send. That way if you catch an error, you can cancel the email and correct your mistake.
UPDATE: I just noticed that I titled this post “New Gmail Feature: Are You Sure You Want to Sent That?” Perhaps WordPress should consider adding a similar feature for bloggers that asks, “Are you sure you want to publish that?” 