Have you ever hit the web late Friday night and emailed your boss a Merlot-marinated piece of your mind? Mail Goggles is for you.

Ever emailed your ex boyfriend while under the influence to admit that you “Still have fleeliings fro him after all theees years” (even though he’s now happily married with three kids … and so, for that matter, are you)? Mail Goggles is for you, too. Especially you.

Our friends at Google know that from time to time we all do and say things we later come to regret. Particularly if we’ve had a few cocktails too many. That’s why they’ve launched Mail Goggles, an email application for G-mail users who want to protect themselves from, well, themselves.

Here’s how it works: After you hit send, you’ll be asked to solve a series of mathematical equations within a designated timeframe. If you can do the math and beat the clock, you’re (allegedly) sober enough to safely speak your mind.

Note that by default, Mail Goggles only activates on weekend nights when email senders are considered, ahem, most at risk. Of course, you rock stars can adjust the settings to suit your needs.

Now, if only iTunes would get something similar. After all, how many times can I hook up with the Broadway cast of Les Miserables and still respect myself in the morning?