I (the author) was just some weeks ago in Amsterdam. And of course I got some ‘pressure’ too.
What I experienced was that there are more McDonalds outlets in Amsterdam than Public Urinals
I actually didn’t see one of them.
And – there was no time to search the web for that!
So I recommend you to go to a fast food outlet, an auberge de jeunesse or if you don’t mind about the ‘sweet’ ganja smoke in all the many coffee shops, why not go there, it’s legal… (find some pictures below)