Engineers’ Male Choir problem

Engineers’ Male Choir has a problem. Men cannot find their way into the choir. We advertised on the ladies’ toilet walls of the cultural institutions (Estonian Concert, Estonia, etc.). Why ladies’ toilets? Because most well-behaving male individuals listen to what their wives have to say at home. Why the cultural institutions? Because it is quite likely that the ladies using the toilet there have a male individual who is suitable for the Engineers’ Male Choir at home.