I will certainly admit to having peed in a good few red phone boxes and also the newer ones that had glass sides.   The design of the phone box evolved and I think the designers were well aware of their secondary use as urinals because when they moved away from the red boxes they introduced much bigger glass panels to make occupants more obvious and thus discourage peeing, but they also made them so that the panels finished a few inches above the ground which allowed the pee to run away.   In th