Phuket, Thailand about 4 years ago. I urgently needed to go to the toilet and popped into a hotel, zoomed past the front desk, followed the toilet sign and ... just in time made it into the cubicle, where I froze. OMG, there was another person in there! Ohhhh phewww, NO, I was mistaken! What stupid architect would design a toilet cubicle walled with mirrors? Not a good look! A couple of days later, in same place, decided to use same toilet. Wandered in knowing what to expect..pushed cubicle door open, my brain expecting to see me, so took it in my stride until........"oh %$## there are two of us in here.

(I'm sure the woman sitting on the toilet got a shock as well, no idea why she didn't have it locked)