Gmail Introduces Drunk-Email Preventer

That's right: it's called "Mail Goggles." When enabled, Gmail will force you to solve a few simple math problems before sending any emails.

You can even set it to a schedule so it's only active on Thursday, Friday and Saturday nights. And maybe Tuesday and Wednesday too.

Never send an email you regret again! (unless you're a math major)

Go to "Settings," then "Labs" to access.