The Drawer

At our house, we have a drawer.

This is a picture of that drawer at several different hours of the day.  One day, the same as any other.

Yes, I closed the drawer after taking each picture.  And yet, somehow, it was open again a little while later.
How does this happen?  I'm not sure, because I never actually see who gets into the drawer and leaves it open.  I just pass the bathroom ... and there it is.

Any suggestions???