I always tell people (and myself), if you’re going to send a crazy emotional email, you should always wait until the next morning to send it. I guess someone at Google was thinking the same thing when they invited this: Mail Goggles.
Once activated, you are required to solve a few very basic math problems in under 43 seconds, to make sure you are in the right frame of mind. Funnier yet, the default setting activates Mail Goggles on weekend nights only.
Thanks to good people at Google, now you can wake up the next morning in peace! Hungover maybe… but in peace 