Do you have a moody boss or wife? This Networked Emoticon device gives you fair warning when tide has turned. The design concept calls for an Ethernet hookup, and you choose one of four emoticons from afar via a web page or cellphone.
Install one at home and one at work, and then everyone can be warned when that next tempest is about to hit. Or, you could just get a scrip for Paxil and then just one expression will permanently suffice, and you'll never have sex again.