Exactly - what I am saying is that a visit to any provider here is against the law - albeit low risk, as I said.
I have not had personal experience of being challenged by police - it appears to be extremely rare - but I gather it is very difficult for them to bring a successful prosecution if you keep your mouth shut. In some circumstances you may be obliged to provide ID, but I don't think you have to answer questions about what you were doing. There have been cases where the main evidence that led to a conviction was what the client himself said. Even when they know what you were up to beyond reasonable doubt, unless client or provider cooperates with them, their evidence is too circumstantial to be worth bringing a case.
You don't even say "nothing happened". You say nothing!