I haven't
In today's digital world, you don't have to fumble through the phone book. You can text or email whomever you wish from your contact list and bare whatever soul-searing secret you want. Google Labs has something on tap called Mail Goggles to save you from yourself. It forces you to do a few simple math problems to make sure you are coherent enough to get that email off your chest. It looks like, should you not pass the math test, Google won't send the mail.
Worth a look, but far better simply to just stay completely away from the computer in the wee hours after a few drinks. If you cannot say Google Goggles three times really fast, don't touch your email.