I've noticed myself doing that a lot more occasionally.
Especially when I talk fast because I can't swallow my saliva back, hahaha.
I dislike the people that overreact and say.
"OH MY GOD. EW. YOU JUST SPIT ON ME. THAT'S DISGUSTING."
I'd just say sorry and continue with what I was talking about.
I was walking outside and complaining to my mom how the Chinese food tasted bad today.
I spit a little bit, but the wind was blowing in my direction, so it came back and hit me in the face. >:
Hahaha, sorry if that disgusts you.