At times, some people, when are brutally drunk tend to send e-mails to their friends, office mates, and lovers without even being conscious about what they are writing, which they later regret. 

To solve this problem, Gmail engineer Jon Perlow has come out with a solution and has introduced Mail Goggles, a feature which once activated will question the sender a series of problematic questions before the mail is sent. 

All that a user has to do is activating the Mail Googles and then select days and times when they're most likely to be drunk. 

Once it has been done, the user, whenever will send an e-mail at the specified hours, will be checked by Mail Googles through a series of math problems that needs to be solved within 60 seconds. There are several levels of difficulty, which a drunken mind will not be able to solve. 

Presently, Mail Goggles are available in the Labs tab on Gmail settings.