Kid in class: I'm sick Ms. JRC, I have ammonia!
Me: You have what?!?! (trying not to laugh)
Kid: I have ammonia, the Dr said so... I have yellow stuff in my nose.
Me: Ummmm I think you mean Pneumonia... (still trying not to laugh)
and Pneumonia is in your lungs, not in your nose.
Kid: Well, the Dr said I have it!!
I was dying. He was so somber and serious.
PS: He's 13 years old and about the tiniest kid you'd ever want to meet. Full of piss and vinegar!!