At a busy local mall a while back, I went to use the single room toilets. It faces out onto the main court with a sliding door on it where you simply push a button to enter... l did this to find a young Japanese girl already sitting in there!
Horrified, I tried to close the door again for her, but you can only do it once inside (she'd not locked it) ... people were walking past, so she called me in urgently
Fortunately she was only in there for a small visit and I just turned the other way giggling until she'd composed herself.
I couldn't just leave her on the throne in full public view, yet if it was a bloke with more business to do, hmm I don't know?
Had any sticky scenarios?