"That's right. Then you will have a lot of water inside your mouth."
"Yes, Mr. Wong. It is the saliva."
[a difficult vocabulary word for a fourth grader in HK]
"Oh! Matt, how do you know that word?"
"My sister's name is called Saliva."
what?!
"Oh, do you mean Sylvia?"
"No, it is Saliva."
Only in Hong Kong.