I have a HUGE problem with my ex picking up my phone and trying to poke around in it. I also have a problem with babies poking around on my phone also. I can so often see the scenario of some infant wiping my phone out with one touch. That is number one, number two is that same baby dropping my phone in the toilet or a bucket of water (I'm responsible enough not to leave these things around and doors unlocked). I have app protection, but you can get to the apps and need to put in a number, I don't even want the ex to see those. I want an app where the screen is blank or you can set an alternate wallpaper and when the screen is pressed, nothing comes up. Oh, and if possible free. I've tried some but they were annoying or had some really sad wallpapers, not only that, you could see what was on the desktop. I don't want that at all.