Although silhouettes and suggestions were fine to both user and passerby, the users do not want to be recognized by those on the outside, who in turn want to be spared the overt imagery of what's happening inside. So, for the Victoria urinal prototype, the team had a trial-and-error series of adjusting the pipe lengths and the gaps between them. They had to finely calibrate the recognition factor to a precise balance, adjusting the spaces between pipes so that you can tell there's one (and only one) person inside, but you can't tell who it is. To do this, behind the prototype's pipes they placed a cutout photograph of perhaps the most highly recognizable face in the province: the premier of British Columbia [Gordon Campbell]. "As soon as we could tell it was Gordo, we knew the spaces were too far apart," explains Soules.