This is the kind of thing you see, and you go: only in Singapore. It’s a sign outside a disco near the river:
It makes me think: unlike the injunction to enjoy in Sentosa, this one should be rather effective. It spells out what is banned in a very general way, thus opening up a space for forbidden practices that is pretty wide. Even dancing cheek-to-cheek in such a place probably makes one feel extremely filthy and sinful, thus making it easier for locals and visitors to break the rules a little bit so they don’t feel too constrained.
This a great political advantage of morally-strict places: that the unavoidable, half-secret undermining of the ruling ideology by the rebel types will still be not such a big deal as they think it is. The authorities make it easy to rebel and yet stay well away from the real boundaries; one might call this Singapore’s “broken windows” theory of morals, after the similar theory applied in the U.S. to lower crime rates in the 1990s: