If I go into a cafe or store, what is the correct French phrase to use to ask if I can please use their bathroom? I've heard that in some case, they may ask me to buy something -- is this true most times?
I read also that there are public bathroom stalls that take coins too -- how common are those in the city? I just don't want to get into a situation where the need is there, but there is no where to go! :)