I know that when people put up t.p. in the cracks of a stall, they want privacy. They want privacy because they're more likely than not giving birth to a stinky #2 baby. What they don't realize is you've just raised the white flag of shame. You have alerted everyone in the bathroom to pay attention to your butt. Literally.
When you walk out people will stare and wonder what in the world you could have been doing that demanded that kind of privacy.