You won't believe, what happened to me last night.
I was working late, well not really late, but about an jour or so later, than most everybod else. I had been in a meeting all afternoon, and after the meeting, when everybody else was calling it a day, I had to go and answer tons of emails.
After an hour or so, I was thinking about going home. When I left my office I noticed, that there really was nobody there anymore, there was only one light one, down the hallway and I put that down to someone who had forgotten to switch it off. I thought that before going home, I would quickly visit the toilet.
I walked down the corridor towards the ladies, when I noticed in the little window above the door that the lights were on there also.
When I opened the door and walked in, I almost tripped over one of our trainees.
She was squatting on the floor and peeing on the tiles. But she was not alone, there was another girl sitting on the edge of the sink with her pants down, and the toilet stall was locked also. Both of the girls I could see were giggling madly, but when they noticed me, they fell silent immediately. From the stall there came the voice of a third girl quite clearly pretty drunk asking of her colleagues what was going on.
All of a sudden both of the girls were apologizing to me and telling me, they had a little after work drink celebrating a birthday, and they were begging me not to tell anyone.
I assured them, I wouldn't tell anybody, in fact I wasn't even there and when the girl from the sink came down and pulled up her pants, I just told her to move over and pulled up my skirt as if to pee in the sink.
The girls both were stockstill with shock and awe and looked at me with big eyes. When I saw the looks on their face, I started laughing out loud, it was too funny.
I asked them, if they really believed, I was going to pee in the sink. When they started laughing too, I stepped over to the trash can, slid down my panties and peed right in it.

After I had finished, I pulled up my panties and smoothed my skirt. While walking to the door, I said: "Remember, none of us was here this evening!" and I walked out.

I'm really curious, how they will behave towards me in the future...