I guess most people must actually lock the phone with password or other ways...I don't..so motion gestures comes into play then.. itll wake screen and start doing all kinds of things while trying to wipe screen clean....either that or im really dumb...just seems weird u have to go all the way into options shut off motion gestures shut phone back off now the screen wont wake by touch.. clean it ... power back up again and go back into options to recheck gestures