I have been working at Macy's for a while now, and one of my jobs involves light placement (changing the light bulbs, pointing the lights in the best places, etc). When I was being trained in changing the bulbs (because one can really hurt themselves if they don't know how), one of the guys was showing me how to change the ones in the women's restroom, which of course requires him to be in the women's restroom with me. While he didn't seem to mind being in there, some of the women turned around and walked out of the restroom when they saw him there, while others just ignored him and went about their "business".
So what would you do? If you saw someone of the opposite sex standing there in the bathroom, would you turn around and leave or would you just ignore them?