Which of the following behaviors is legal in Switzerland?

They also have more guns per habitats than USA

Switzerland is mountain country without sea, only lakes so it's interesting they have developed nudism. Maybe they like sunbathing after cold winters.

Is there also a law against getting food poisoning etc.?If not, then law number one is pretty terrifying.

say something more about Switzerland...

didn't know that, don't think I would like to go there!