It’s probably the most disrespectful thing you can do to another person.
Worse than a slap in the face. More offensive than insulting one’s mother. It’s called spitting and it’s atrocious. To purposely project saliva in someone’s direction is to throw a stick in the spinning spokes of civilization and I’m pretty sure they’ll jail you for it in Singapore.
Waves, however, can get away with it.
Here’s Stephen Koehne at Off The Wall. He’s blatantly getting spit on. But by the looks of it, there’s no place in the world he’d rather be.