First day at a new job, dying to go for a pee, found the loos and promptly hurried into a cubicle to do the business, I couldnt see anyone else about. A few seconds later, I heard a female voice shout "Is anyone in here?" Without thinking I replied "YES" and after leaving the cubicle i spied a row of urinals in front of me! I quickly washed my hands and ran out of there as fast as i could stopping on the way to say to the cleaning lady "Please dont tell anyone about this!" LOL!!!!!!!!! I didnt know i was in the mens washroom! AAAAAAAAGH!