What is a 20-word poem about pornography and illegal publications?

20-character short poem on pornography and illegal publications:

Busy with pornography and illegal publications, don't return at dusk.

Eliminate pornography and ensure safety, and it cannot be removed if it is not strict.

Eradicate pornography and illegal publications:

Eliminating pornography refers to eliminating obscene books, periodicals, audio-visual products, electronic publications and pornographic information on the Internet that endanger people's physical and mental health and pollute the social and cultural environment.

Cracking down on illegal publications refers to cracking down on publications that violate the constitutional provisions of People's Republic of China (PRC), undermine social stability, endanger national security and incite ethnic division, as well as infringing and pirated publications.