I like Google Glass as much as the next bloke. It's a great way of accessing small amounts of data in an unobtrusive manner.
BUT! If Larry Page came into my bathroom and started filming me in the shower and tweeting the video all over facebook, I'd say "OI! PAGE! NO!" Being the CEO of a multi-million dollar company does not give you the right to come into my bathroom and start filming me in the shower!
(apologies to Harry Enfield.)