It's the kind of idea that geek mates tend to discuss at the back of a cab. But for Google, it meant going the extra mile and delivering a new feature for Gmail called Mail Googles which aims at reinforcing the perception that not only it doesn't do Evil but also helps us become better.
The Gmail add-on (which is disabled by default) wants to prevent those late night emails that are often sent while heavily drunk or under influence and which might come back later to bite you.
Mail Googles is similar in its construction to the Captcha system and challengers the user to provide with a series of answers to simple mathematical questions within a set number of seconds.
The theory behind it is that if you're not drunk, you will be alert enough to quickly fo through those math questions, otherwise, your email will not be sent.
Mailgoogles, created by Google Engineer Jon Perlow, allow you to select the days and times when you're likely to need Gmail to step in and double check that you want to send that email and you can increase or decrease the level of difficulty.
Amongst other Google Mail Labs graduates are Go to Label, Holiday Time! and even an Old snakey game. It would be great if Google could actually come up with a version for Drunk Texts or maybe license that odd patent granted to Samsung that allows unseen texts to be deleted.