QuickPic help please

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http://androidforums.com – I have pics that I would like to keep hidden in my phone so the kids or someone I'm letting look through my phone don't see them. I tried using QuickPic and created a new folder "Private" and put them in there then hid the folder. Now, I don't know how to find it in my File Explorer and the pics still show up in my stock gallery even though when I tap them it doesn't show them in the full size view. I want them to be excluded from the gallery completely. Is there a way to do this? Am I doing something wrong? (General)