Have you ever sent a too-honest email just like what this Cisco guy did with his tweet? This kind of “Oops” incident is too common to you and me.

Google Labs has invented this Google Mail Goggles to save you from sending embarrassing email that you may regret later. It works like this:

By default, Mail Goggles is only active late night on the weekend as you most likely to send messages you wish you hadn’t. Gmail will ask you to solve a few simple math problems after you click send to verify you’re in the right state of mind. Wrong answer? Don’t send the message! (Hopefully it is because you are drunk and not because you don’t know the answer…)