Somebody did this at our place.

The poor cleaning ladies took one look, then went out for a ten minute fag break to draw straws. It had been done just before the weekend and this was a Tuesday, so they almost needed the pressure washer.

They blamed one of the fat lads for it, but fat lads don't hovershit. This was the work of a younger man, unaccustomed to the feeling of unfriendly porcelain upon his virgin cheeks. Suddenly caught short and needing to do his first workplace poo, but also unable to accept that his bottom might have to go where other bottoms had boldly gone before.