Ex.
1:
"
Hey, I have to cancel tonight's plans. I'm really
sorry, we can go out another time?"
"Sad."
Ex. 2:
"Are there any cookies left?"
"No, I ate them all."
"Sad."
Ex. 3:
"What did you end up getting on that essay?"
"0"
"That's too bad"
"Yeah. Sad."