I'd say most cis folks will pretty instantly recognize when they've accidentally entered the wrong restroom and make a hasty (if somewhat embarrassed) retreat.

I'd say most cis folks will pretty instantly recognize when they've accidentally entered the wrong restroom and make a hasty (if somewhat embarrassed) retreat. I generally assume most people are headed to the right spot or will very, very quickly figure out when they've made a mistake. That feeling of, "Oh shit, I don't belong here", btw, is basically what I feel using either gendered restroom. Thankfully, most tech companies try to provide some gender neutral restrooms.