Can you password protect part of your gallery?

[laserone]

I was wondering if there is a way to password protect certain folders of the gallery. I noticed that when you view the gallery from the home area, that you (or anybody playing with my camera) can view absolutely every single picture I ever took and saved to dropbox. People always want to play with your new camera and I don't want people stumbling into my private photos either on purpose or by accident. Does anyone know if it's possible to password protect certain folders in the gallery or if there is an app for that?