Inventive use of two way mirrors

[Ding]

someone has just told me that on a trip to Australia they went into a bar that had a mirrored wall in an area where all the 'girlies' readjusted their make up.
What they did not realise was that on the other side of this was the gents urinals!
Thank goodness they could not see the other way!

He said it was impossible to wee whilst looking at girls putting on their lippy!