How to make men wash their hands…

My parents and my youngest brother were visiting me last week and of course I had to take them to see all the great things here in Barcelona. And when you are travelling you have to use public toilets…

Me and my mom were waiting in a line the other day and the sinks were in front of the toilets. While we were waiting we noticed that only one… ONE!!! man washed his hands after they came out.

Well….I think we found the solution to this problem