Pick 'n Park - pay-as-u-go sex

Unfortunately there are those were would rather not witness in-car shenanigans - nearby residents and pedestrians, for instance.

In a bid to provide a safe, private environment for "parking up" the Swiss authorities are to erect drive-in sex boxes where couple (threesomes, foursomes?) could park and complete their tryst without bothering bypassers.

People whose homes overlook the red-light district have sent many complaints prompting Zurich police chief Daniel Leupi to propose the idea of  building "sex boxes" - which are already in use in Germany.

Basically, they're parking slots with metal fencing on three sides.

Police spokesman Reto Casanova (really) said: "We can't get rid of prostitution so have to learn how to control it."

The aptly-named spokesman didn’t mention some obvious flaws, such as the implication that you're getting up to lewd acts if you're using the bay. You might as well send up a flare announcing you're about to get it on.