Google recently unveiled a new feature, Mail Goggles, which could prevent you from sending that late night email you may regret come morning. Unfortunately, a breathalyzer does not magically appear and ask you to blow towards your computer screen, however, a prompt kindly times you while you perform a few simple math problems. Currently the goggles come on in the wee weekend hours, but you do have the option of changing this according to your personal imbibing schedule. Is this the type of feature we should come to expect from Google Labs? Either way, it is nice to know they have quite the sense of humor.