Well, probably not. In China it's just a common occurence for people, men and women, to be walking down the street and all the sudden just hawk up a loogie and send it flying. I've had to dodge spit before. It's like they don't think it's their duty to watch out for you. You watch out for yourself and if you hear the sound of someone clearing their throat you must be alert and ready to dodge a loogie.
I've also seen them press down on one nostril and give a mighty blow and shoot snot in all directions out of the other nostril. I know it's unbelievable, but they don't think any of this behavior is rude.
LOL...and WE are the uncultured barbarians...:) Go figure!
I wouldn't get too worked up about that. Here in the states I've heard it called the "Texas Hankie".