@RM
I bring up those particular countries only because my extensive personal experience is there, and not in NoKo, for example. However, at one time [I've not been in Singapore for 10 years] a fineable offense was spitting on a public sidewalk, or chewing gum [the don't even sell the stuff] because the stuff ends up on sidewalks everywhere else. Must always flush a toilet, even in one's home [or hotel room]. I was there once over a six-week period. A woman from Hong Kong arrived the same day I did, coincidentally. She was stopped at the airport for the discovery of 1 kilo of heroin in her luggage. I watched the news as in, within 5 weeks, she was arrested, charged, tried, convicted, and executed for her crime. Singapore is no Disneyland; they are serious about law enforcement, and they enforce it with extreme prejudice.