I know its hard to get in Amsterdam but pretty available in PI and other places

The answer to your question is that of course they did.

Who did, how often etc is another question.

In the FKK's it has happened but generally its just NSU and extremely rare, especially when considering the sheer amount of sucking that goes on, so I consider it an acceptable risk.

IF it happened all the time in the Wallen, the incidents would rise a little, but I for one am glad its all covered in the Wallen, because of the "fuck factory" nature of the place with all the tourists.